Driving support system

Abstract

To provide a display device or a driving support system that enables a driver to obtain information, a display device or a driving support system that enables a driver to feel less burden, a display device or a driving support system that is suitable for space saving, a display device or a driving support system that can display in a large area, and a display device or a driving support system that does not degrade an interior design in a vehicle.SOLUTION: A display device includes a display panel having flexibility and capable of deforming between a first mode and a second mode, and driving means having a function of reversibly changing the display panel between the first mode and the second mode. In the first mode, a display surface of the display panel is suspended and in the second mode, the display panel is housed on the upper side.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] One aspect of the present invention relates to a display device. In particular, the present invention relates to a display device that can be mounted on a vehicle. One aspect of the present invention relates to a driving assistance system.

[0002] Note that one embodiment of the present invention is not limited to the above technical field. Examples of the semiconductor device include a semiconductor device, a display device, a light-emitting device, a lighting device, a power storage device, a memory device, and the like. One example is a driving method or a manufacturing method thereof. [Background technology]

[0003] In recent years, large commercial facilities have expanded in the suburbs, making it difficult to walk to the shops for daily necessities and food from residential areas. More and more people are choosing to do their shopping at these large commercial facilities rather than at nearby shops. The commercial facility is located away from residential areas or suburban areas and has a large parking lot. Therefore, it is often convenient to use a private car as a means of transportation. This is one of the reasons behind the increasing trend in the number of vehicles owned for transportation.

[0004] However, as traffic volume increases, the incidence of traffic accidents also increases. In addition, some people do not drive daily to commute to work or school, but only on holidays. The low-frequency driving demographic, such as those who drive in a car with a high driving frequency, is more likely to cause traffic accidents. As we enter a super-aging society in the future, the issue of how to reduce the incidence of traffic accidents will become an issue. Therefore, it is necessary to provide the driver with information about the surroundings or to detect danger and warn the driver. Development of driving assistance systems, such as warning drivers when

[0005] A navigation system is known as one of the driving assistance systems. The system is equipped with a display device such as an LCD display, and displays maps, location information, routes to destinations, and traffic The device supports the driver by displaying traffic information on the display unit. do.

[0006] Representative display devices include liquid crystal display devices and organic EL (Electro Lu minescence elements and light emitting diodes (LEDs) a light-emitting device having a light-emitting element such as a diode, an electronic device that displays information by electrophoresis, etc. Examples include paper.

[0007] For example, the basic structure of an organic EL element is a layer containing a light-emitting organic compound between a pair of electrodes. By applying a voltage to this element, light is emitted from the light-emitting organic compound. A display device to which such an organic EL element is applied is called a liquid crystal display device. Since it does not require a backlight, which was previously necessary in some devices, it is thin, lightweight, has high contrast, and consumes less power. A power-saving display device can be realized.

[0008] In addition, Patent Document 1 describes a film substrate on which transistors and organic EL display devices are mounted. A flexible active matrix type light emitting device having an EL element is disclosed. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2003-174153 A Summary of the Invention [Problem to be solved by the invention]

[0010] One aspect of the present invention is to provide a display device or a driving assistance system that allows a driver to easily obtain information. Another object of the present invention is to provide a display device or driving assistance system that does not impose a burden on the driver. One of the objectives is to provide a display device or operating system suitable for space saving. One of the objectives is to provide a driving support system. It is an object of the present invention to provide a vehicle interior installation or driving assistance system that does not impair the aesthetics of the vehicle interior. It is an object of the present invention to provide a display device or a driving assistance system that does not require a One object of the present invention is to provide a display device or a driving assistance system.

[0011] The description of these problems does not preclude the existence of other problems. It is not necessary to solve all of these problems. Problems other than those mentioned above are not necessarily solved. It is possible to extract such information from descriptions in the fine print, etc. [Means for solving the problem]

[0012] One aspect of the present invention is a display device having a display panel and a driving means, The display panel is flexible and has a first form and a second form. The first form is a form in which the display panel is suspended. In the second embodiment, the display panel is stored in the upper portion. It has the ability to reversibly change between the first form and the second form.

[0013] Another aspect of the present invention is a display device having a display panel and a driving unit, The display panel can be installed in the upper part of the vehicle body in front of the driver's seat. The display panel can be transformed into a first form and a second form. In the first form, the display panel is suspended. The second type is a display screen that is positioned within the driver's field of vision. The display panel is stored in the upper portion. The driving means controls the display panel between the first form and the second form. The shape of the film can be reversibly transformed between the shapes of the film and the film.

[0014] Another aspect of the present invention is a control unit, a detection unit, a first imaging unit, and a display device. The driving assistance system can be installed in a vehicle body. The first imaging device has a function of detecting the state of the image forming apparatus and a function of outputting the detection information to the control unit. The display device has a display panel and a driving means. The display panel can be mounted on the upper part of the vehicle body in front of the driver's seat. The display panel can be changed into a first form and a second form. The display is suspended from the vehicle and is positioned within the driver's field of vision. In the first embodiment, the display panel is stored in the upper portion. The control unit has a function of reversibly transforming the shape between the first shape and the second shape based on the detection information. The first state is a state where the display panel is turned on and the second state is turned off. The panel is in a first form, and a first image captured by the first imaging means is displayed on the display panel. The second state is a state in which the display on the display surface of the display panel is stopped. and the display panel is in the second configuration.

[0015] In the above, the display panel is folded and stored in the second form. In the second embodiment, the display panel is preferably stored in a rolled-up state. It is preferable that the above-mentioned

[0016] The control unit has a function of switching to the first state when the detection information indicates reverse driving. In this case, in the first embodiment, the lower end of the display panel is located at a height above the driver's viewpoint. It is preferable that the ion exchange layer 11 is located at or below the height of the substrate 11 .

[0017] The control unit has a function of detecting position information of a target from the first image and a function of calculating the position information from the position information. a function of determining a direction in which the vehicle should move from the first state to the second state; The function of displaying an image indicating the direction in which the steering wheel should be operated together with the image is to be provided. preferable.

[0018] The control unit has a function of switching to the third state when the detection information indicates forward movement. In this case, the third state is preferably such that the display panel is in the third configuration and The third mode is a state in which the image of 1 is displayed on the display surface. It is positioned higher than the driver's viewpoint.

[0019] In addition, a second imaging means having a function of imaging the front or side of the vehicle body is provided. In this case, the control unit preferably controls the second imaging unit to capture the image in the first state. It is preferable that the second image is displayed on the display surface of the display panel. or a second image captured by a second imaging means in the first state and the third state. It is preferable that the display panel has a function of displaying the above on the display surface.

[0020] In addition, the control unit may be configured to: It is preferable to have a function of displaying an image on the display surface of the display panel by flipping the image from left to right.

[0021] Furthermore, one aspect of the present invention is a driving assistance system including the above-described display device, , is attached to the top of the vehicle interior.

[0022] In addition, the above vehicle has a sun visor attached to the ceiling of the vehicle body, and the display device is When the panel is in the second configuration, it is installed in a position that is covered when the sun visor is raised. Alternatively, the display device is preferably attached to the sun visor. It is nice. Effect of the Invention

[0023] According to one aspect of the present invention, a display device or a driving assistance system that allows a driver to easily obtain information is provided. Alternatively, a display device or driving assistance system that places less of a burden on the driver can be provided. Alternatively, a display device or driving assistance system suitable for space saving can be provided. Alternatively, a display device or driving assistance system that does not impair the scenery inside the vehicle can be provided. A novel display device or driving assistance system can be provided.

[0024] The description of these effects does not preclude the existence of other effects. An embodiment does not necessarily have to have all of these effects. can be extracted from descriptions in the specification, drawings, claims, etc. [Brief description of the drawings]

[0025] [Figure 1]1A to 1C illustrate configuration examples and application examples of a display device according to an embodiment. [Diagram 2] 1 shows configuration examples of a display device and a vehicle according to an embodiment. [Diagram 3] 1A to 1C illustrate configuration examples and application examples of a display device according to an embodiment. [Figure 4] 1A to 1C illustrate configuration examples and application examples of a display device according to an embodiment. [Diagram 5] 1A to 1C illustrate configuration examples and application examples of a display device according to an embodiment. [Figure 6] 1A to 1C illustrate configuration examples and application examples of a display device according to an embodiment. [Figure 7] 1 shows an example of the configuration of a system and a vehicle according to an embodiment. [Figure 8] 1A to 1C are diagrams illustrating a form of a display device according to an embodiment; [Figure 9] 4 is a flowchart according to an embodiment. [Figure 10] 1A to 1C are diagrams illustrating displays on a display panel according to an embodiment. [Figure 11] 1A to 1C are diagrams illustrating displays on a display panel according to an embodiment. [Figure 12] 1A to 1C are diagrams illustrating displays on a display panel according to an embodiment. [Figure 13] 1 shows a configuration example of a display device according to an embodiment. [Figure 14] 1 shows a configuration example of a display device according to an embodiment. [Figure 15] 1 shows a configuration example of a display device according to an embodiment. [Figure 16] 1 shows a configuration example of a display device according to an embodiment. [Figure 17] 1A and 1B are diagrams illustrating examples of light-emitting panels according to an embodiment. [Figure 18] 1A and 1B are diagrams illustrating examples of light-emitting panels according to an embodiment. [Figure 19] 1A to 1C illustrate an example of a method for manufacturing a light-emitting panel according to an embodiment. [Figure 20] 1A to 1C illustrate an example of a method for manufacturing a light-emitting panel according to an embodiment. [Figure 21] FIG. 1 is a diagram showing an example of a touch panel according to an embodiment. [Figure 22] FIG. 1 is a diagram showing an example of a touch panel according to an embodiment. [Figure 23] FIG. 1 is a diagram showing an example of a touch panel according to an embodiment. [Figure 24] FIG. 1 is a diagram showing an example of a touch panel according to an embodiment. [Diagram 25] 3A and 3B are a block diagram and a timing chart of a touch sensor. [Figure 26] Circuit diagram of a touch sensor. [Figure 27] 1A to 1C are diagrams illustrating a laminated panel according to an embodiment. [Figure 28] 1A to 1C are diagrams illustrating a laminated panel according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] The embodiment will be described in detail with reference to the drawings. However, the present invention is not limited to the following description. The present invention is not limited to the above embodiment, and various changes and modifications may be made in the form and details without departing from the spirit and scope of the present invention. It will be easily understood by those skilled in the art that the present invention can be realized by the following embodiments. The present disclosure should not be construed as being limited to the contents of the preceding paragraph.

[0027] In the configuration of the invention described below, the same parts or parts having similar functions are The same reference numerals are used in common between different drawings, and the repeated explanations are omitted. When referring to a function, the hatch pattern may be the same and no particular symbol may be used.

[0028] In each figure described in this specification, the size, layer thickness, or area of ​​each component is indicated by the following formula: The figures may be exaggerated for clarity and are not necessarily limited to scale. stomach.

[0029] In this specification, ordinal numbers such as "first" and "second" are used to avoid confusion of components. The numbers are added for the purpose of convenience and are not intended to be limiting.

[0030] The words "film" and "layer" can be used interchangeably. For example, the term "conductive layer" may be changed to the term "conductive film." Alternatively, for example, the term "insulating film" may be changed to the term "insulating layer." It may be possible to change it to.

[0031] (Embodiment 1) In this embodiment, a structural example of a display device according to one embodiment of the present invention will be described with reference to drawings. do.

[0032] The display device according to one embodiment of the present invention is a display device that can be suitably attached to the interior of an automobile. In particular, it is intended to be attached to or incorporated into the interior of an automobile, such as the ceiling. The display device is a flexible display panel and a driving mechanism for changing the shape of the display panel. The display surface of the display panel is suspended from the upper part of the automobile by the driving means. The display panel can be reversibly transformed between a configuration in which the display panel is folded up and a configuration in which the display panel is folded up. For example, the display panel can be stored in a rolled or folded form. It can be paid.

[0033] Such display devices are not only installed in front of the driver's seat, but also in front of the passenger seat and the rear seats. This allows passengers other than the driver to view images and videos. The display panel of the display device can be stored, so it is possible to use it without using a conventional stationary display. Therefore, a display panel having a larger display area than that of the conventional display device can be used. This allows for space saving while providing a lot of information. Also, there is a high degree of freedom in where the device can be installed. It can be installed on vehicles of various body sizes. Because it is flexible, there is no risk of injury if a passenger collides with the display panel in the event of an accident. Since the display device has a low sensitivity, it can be said to be extremely safer than conventional display devices.

[0034] More specifically, for example, the following configuration can be adopted.

[0035] [Display device installation example] 1A to 1C show a display device according to one embodiment of the present invention attached to the interior of a vehicle. Here, the display device 50 is attached to the upper part (diagonally forward upward) in front of the driver's seat. The following example shows this.

[0036] The automobile has a windshield 61, a gear shift lever 62, a sun visor 63, a steering wheel 6 4. In addition, a navigation system 65 is installed in a car. This shows the case where

[0037] FIG. 1(A) shows the sun visor 63 in the raised (stored) position, and FIG. 1(B) shows the sun visor 63 in the stored position. The display device 50 shows the state in which the sun visor 63 is raised. Therefore, the appearance of the interior of the automobile is not marred. The display device 50 can be attached to the vehicle body without any trouble.

[0038] 1(A) and (B) show the display panel 51 of the display device 50 in a stored state. 5 shows a state in which the display panel 51 is stored inside the ceiling (inside the ceiling surface). From this state, as shown in FIG. 1(C), the display panel 51 is transformed into a suspended state. In this case, the display surface of the display panel 51 may be flat or curved. The display surface is positioned within a range visible to the driver.

[0039] In each of the drawings in FIG. 1, the display panel of the display device 50 is attached to a handle 64 of the vehicle body. The figure shows a case where an operation unit 66 for operating the shape of the 51 is incorporated. For example, a switch or a touch panel can be used for operating the operation unit 66. By this, the display panel 51 is deformed by the driving means 52 of the display device 50 described later. This can be done.

[0040] FIG. 2 shows a block diagram of a vehicle 60 incorporating the display device 50. The vehicle 60 includes: For example, it has a display device 50, an image output means 67, an operation unit 66, and the like.

[0041] The display device 50 includes a display panel 51 and a driving means 52. The display panel 51 is The display panel has flexibility, and the display surface is unfolded (unfolded) to be flat or curved. The coil 51 can be transformed into a rolled-up and stored form or a folded-up and stored form. In addition, the driving means 52 of the display device 50 can drive a small area of ​​the display surface of the display panel 51. Between a configuration in which at least a portion of the display panel is suspended and a configuration in which the display panel 51 is stored at the top. The display panel 51 can be reversibly deformed by the driving means 52, for example, an operation unit 66. It can be operated by:

[0042] The display panel 51 can be connected to an image output means 67. The video and images output from the display panel 51 can be displayed on the display surface of the display panel 51. The panel 51 is connected to a camera (imaging means) provided outside the vehicle body, which will be described later, via an image output means 67. ) image, as well as map information, traffic information, vehicle location information, routes to destinations, Information such as distance, direction of travel, estimated time of arrival, time, speed, direction, temperature, humidity, air pressure, inclination The image output means 67 can display various information such as the angle, altitude, etc. For example, television broadcast receivers (tuners), CDs, DVDs, memory cards, and other recording media and media playback devices that play back video information recorded in storage devices. By connecting the image output means 67 to the display device 50, television broadcasts and various other images can be displayed. The above can also be displayed on the display panel 51. An information terminal such as a mobile phone or a smartphone, a portable game machine, etc., and an image output means 67 It is also possible to connect wirelessly or with a wire. This allows you to The transmitted image or the like can also be displayed on the display panel 51 via the image output means 67. .

[0043] The display panel 51 of the display device 50 may have a function as a touch panel. At this time, the display panel 51 displays the application itself and an icon associated with the application's operation. It is preferable to display images such as the icon, etc., in order to facilitate intuitive operation. In addition, for example, the map may be moved, enlarged, or reduced in size by touch operations.

[0044] In FIG. 1C, the display panel 51 is positioned above the top of the windshield 61 when viewed from the driver's seat. The case where the upper end of the windshield 61 overlaps the lower end of the windshield 62 is shown. For example, as shown in FIG. 3(A), The display panel 51 is positioned so that the lower end of the display panel 51 overlaps with the windshield 61. By making the display panel 51 in such a form, the driver's forward view can be improved. The driver can drive in this state because the driving environment is not disturbed. The lower end of the display panel 51 is positioned on the windshield 6 so that the driver can see the surroundings. 1 is located within 50% or less, 30% or less, or 20% or less from the upper end It is preferable to maintain the shape of the display panel 51 so that the display panel 51 can be placed in a vertical position.

[0045] In addition, although FIG. 1 shows a case where the display device 50 is installed in the upper front part of the driver's seat, it may be installed in other seats. The display device 50 may be installed in a position where it can be seen from the passenger seat. In the example shown, the display device 50 is provided at the front upper part of the vehicle. The display panel 51 of the display device 50 can be freely operated using the operation unit 66 provided on the side. It can be made.

[0046] As shown in FIG. 3C, a display device 50 is provided at a position covering a window provided on the side of the vehicle body. In this way, by disposing the display device 50 on the side of the seat, it is possible to transmit the image through the window. In addition, at this time, for example, the display panel 51 can display the side of the vehicle. By displaying the image, the blind spot for the driver can be reduced.

[0047] In addition, Figure 4 (A) and (B) show two display devices on the roof of the vehicle, located behind the front seats. The figure shows a case where the device 50 is installed in the ceiling of the vehicle body. The display panel 51 of each display device 50 is suspended. In this case, a part of the display panel 51 may be configured to overlap a part of the front seat. By configuring the system in such a way that passengers sitting on the right and left sides of the back seat can enjoy the video individually, Also, as shown in Figure 4(C), a large display panel is installed on the roof of the train. In this case, the display panel 51 may be mounted on the passenger seat. The vehicle may be suspended so as to overlap both a portion of the vehicle seat and a portion of the driver's seat. With this configuration, passengers in the back seats can enjoy the video on a larger screen. .

[0048] The display device 50 shown in FIG. 4C may be, for example, the two display devices shown in FIG. 50. That is, one seat from the front of the driver's seat to the front of the passenger seat A display device 50 may be provided such that a large display panel 51 is arranged.

[0049] Even if the display device 50 is provided between the rear seat and the front seat, the display panel 51 Since the display panel 51 is flexible, it can be easily attached to the rear seat of the vehicle. Even if a collision occurs, the risk of serious injury is low, and safety is high. For example, Compared to a conventional LCD display or other display device built into the passenger seat headrest, In addition to the benefit of being able to enjoy images on a larger screen, it is said to have a high advantage in terms of safety. can.

[0050] The location where the display device 50 is installed is not limited to this, and it may be installed in various places such as the ceiling or door inside the vehicle. For example, the sensor may be installed in a window other than the windshield 61 (rear or side). The display device 50 can be installed in a position where the display panel 51 is aligned with a glass or the like provided in the can.

[0051] In this embodiment, the display device 50 is disposed on the upper part of the vehicle body, and the display panel 51 is suspended. For example, the display panel 51 may be configured to be pulled out horizontally. Alternatively, the display panel 51 may be configured to be pulled out from the bottom toward the top.

[0052] The position of the operating unit 66 is not limited to the above, and may be operated by at least the driver or a passenger. For example, the vehicle's armrest, ceiling, dashboard, etc. It can be placed in various parts such as doors and windows.

[0053] It is also preferable to link the navigation system 65 with the display device 50. The navigation system 65 is provided with the function of the image output means 67 described above. The video and images output by the navigation system 65 are displayed on the display panel 51. In addition, the navigation system 65 may be provided with a function as the operation unit 66. This eliminates the need to incorporate the operating unit 66 into the interior of the vehicle, making it more automatic. The display device 50 can be applied without impairing the aesthetic appearance of the interior of the vehicle.

[0054] The above is a description of an example of installation of the display device.

[0055] [Example of display device configuration] Next, an example of the configuration of the display device 50 and an example of a method of installing it above the front of the driver's seat will be described with reference to FIG. 5 will be used to explain.

[0056] 5(A1) and (A2) are schematic cross-sectional views of the inside of a vehicle body of a vehicle 60. FIG.

[0057] A recess is provided in the ceiling 68 of the vehicle body, and the display device 50 is installed in the recess. The display device 50 shown in Fig. 5 (A1) and (A2) has a winding mechanism 53 and a display panel 51. The winding mechanism 53 corresponds to the driving means 52 described above.

[0058] FIG. 5(A1) shows an example of a state in which the display panel 51 is suspended. The display panel 51 is wound up by the winding mechanism 53, as shown in FIG. The display panel 51 can be transformed into a rolled-up form.

[0059] In addition, in FIGS. 5(A1) and 5(A2), the display device 50 is provided inside the ceiling 68. Furthermore, when the display panel 51 is wound up as shown in FIG. The display device 50 is installed in a position where the exposed part of the display device 50 can be covered with a sun visor 63. This is preferable because it does not impair the aesthetic appearance of the interior of the automobile.

[0060] 5(B1) and (B2) show the structure of a display device 50 in which a display panel 51 can be folded and stored. The display device 50 has a display panel 51 suspended from the screen as shown in FIG. The display panel 51 is folded in an accordion-like manner by a lifting mechanism (not shown). 5B2, the display panel 51 is transformed into a state in which it is housed in a recess in the ceiling 68. Also, as shown in FIG. 5(B2), when the display panel 51 is stored, It is preferable to install the display device 50 in a position covered by the sun visor 63.

[0061] In addition, the display device 50 may be installed without a recess or other structure in the ceiling 68. The user can also attach a display device 50 to the vehicle body as desired. For example, as shown in FIG. As shown in FIG. 1, the display device 50 is configured to include a housing 54 that can be attached to a vehicle body. In this way, the display panel 51 can be mounted on the housing 54 at any position on the vehicle body. The display unit is a type in which the user can install the display unit in any position. You can also call.

[0062] FIG. 5(D) shows an example in which the housing 54 is attached to the sun visor 63. When the sun visor 63 is raised, the housing 54 is rotated so that the housing 54 does not come into contact with the ceiling 68. In FIG. 5(D), the display panel 51 is in a rolled-up state. An example in which the sun visor 63 is raised is shown by a dashed line.

[0063] In addition, in FIG. 5(C) and (D), a winding mechanism 53 and a display panel 51 are provided inside the housing 54. However, as shown in FIG. 5(B1) and (B2), the display panel 51 is folded. The configuration may be such that the device can be stored in a single unit.

[0064] A more specific example of the configuration of the display device 50 will be described in a later embodiment.

[0065] The above is a description of the configuration example of the display device.

[0066] [Other application examples] The display device according to one embodiment of the present invention can be used not only in general passenger cars but also in special vehicles intended for special purposes. The present invention can also be suitably applied to vehicles.

[0067] For example, in FIG. 6(A) and (B), a shutter that can cover the front surface of a windshield 61 is shown. The shutter 91 is an example of a special vehicle having a shutter 91 as shown in FIG. 6B, the vehicle is stored in the roof 68 of the vehicle body, and the vehicle is stored in the front windshield 61 of the vehicle body. It can reversibly change its form into a form that covers the front of the vehicle. As shown in Figure 6(A), the vehicle runs with the shutter retracted, and in special circumstances, As shown in FIG. 6(B), the shutter 91 can be lowered. At this time, the driver can see The display panel 51 is positioned within a range where the driver can see the surroundings of the vehicle. This ensures visibility and allows for safe driving.

[0068] Although only the shutter 91 covering the windshield 61 is shown here, the shutter 91 may be used to cover other windows. A shutter 91 is provided to cover the portion (glass provided at the rear or side, etc.) It is preferable.

[0069] For example, in the case of a vehicle that is to travel in an area with high radiation levels, the shutter 91 is made of a material that transmits radiation. In addition, in the case of vehicles such as escort cars, escort vehicles, and armored cars, , The shutter 91 is made of a material with high physical strength, such as a metal or alloy with a thickness of 5 mm or more. Such materials often do not transmit visible light.

[0070] In a special vehicle to which such a shutter 91 is applied, for example, For this reason, a small window can be provided in the shutter 91, but in that case the visibility is limited. In some cases, the user may not be able to grasp the surrounding situation in detail. By applying the device 50, the windshield is covered with a shutter 91 as shown in FIG. Even when the entire window portion such as 61 is covered, the image is captured on the display panel 51 by the imaging means described later. The shutter 91 is provided with a window so that the surrounding image can be displayed. Since this is not necessary, it is possible to use special vehicles that are less dangerous.

[0071] In addition to automobiles, the display device of one embodiment of the present invention can be applied to any moving object. For example, buses, trains, locomotives and other rail vehicles, cranes, bulldozers and other civil engineering vehicles. Work or construction vehicles, manned robots, aircraft such as airplanes and helicopters, ships, submarines This technology can be applied to various moving bodies such as ships and spacecraft.

[0072] In particular, the size and number of windows in spacecraft are limited due to the effects of cosmic rays and weight issues. In addition, when the radiation intensity of cosmic rays is high due to the effects of solar flares, To ensure safety, it is also expected that the windows will be covered with shutters that block cosmic rays. Therefore, a display device according to one embodiment of the present invention, which can easily achieve both a large display area and space saving, is preferred. In addition, the display device according to one embodiment of the present invention is extremely lightweight and can be used in a variety of applications. Because it is compact, the transportation costs (cost required for launch) are much lower than with conventional display devices. It can also be reduced in width.

[0073] The above is a description of other application examples.

[0074] The display device according to one embodiment of the present invention has a flexible display panel positioned within the field of view of a user. Therefore, when the display panel is used, In this case, a large amount of information can be provided to the user in a large display area, and the display panel can be used When not in use, the display panel can be stored to save space and reduce the size of the vehicle body. The display device can be applied without impairing the aesthetic appearance of the interior.

[0075] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0076] (Embodiment 2) An example of a driving assistance system using a display device according to one embodiment of the present invention will be described below with reference to the drawings. Please refer to the following for explanation.

[0077] The driving assistance system according to one aspect of the present invention is, for example, a system for detecting the state of a transmission of a vehicle and the display of a display device. This is a system that works in conjunction with the panel configuration. This allows the driver to perform special operations. The display panel can be transformed into a shape suited to the driving situation without being distorted. Furthermore, information and images appropriate for the situation can be displayed on the display panel. Therefore, the driver can concentrate on driving without feeling any burden.

[0078] In addition, depending on the state of the vehicle's transmission, the display panel may not be located within the driver's field of vision. The display panel is transformed into a state in which the display panel is positioned in a large part of the driver's field of vision and a state in which the display panel is positioned in a large part of the driver's field of vision. Therefore, the driver can see the information displayed on the display panel without changing his / her line of sight. In addition, the display panel takes up a large proportion of the driver's field of vision. Therefore, the amount of information available to the driver can be increased, or the information can be easily understood by the driver. It is possible to display a larger image.

[0079] In addition, even when driving the vehicle forward, the vehicle may be positioned higher than the driver's eye level. By positioning the display panel in a convenient location, the driver can easily see the surroundings while driving. This allows the user to view the information displayed on the display panel at the same time without blocking the surrounding field.

[0080] More specifically, for example, the following configuration can be adopted.

[0081] [System configuration example] FIG. 7 is a block diagram showing an example of the configuration of a system 70 described below.

[0082] The system 70 includes a display device 50 , a control unit 71 , an imaging unit 72 , and a detection unit 73 . As shown in FIG. 7, the device may also include a storage device 74, an input means 75, and the like.

[0083] The display device 50 can refer to the configuration of the first embodiment. The display device 0 has a flexible display panel 51, which is suspended by a driving means 52. It is reversibly transformable between a lowered configuration and a stowed configuration.

[0084] The imaging means 72 can capture images of the surroundings of the vehicle body. The image capturing means 72 has a function of outputting image information to the control unit 71. The imaging means 72 can capture images of the front and rear of the vehicle body. It is sufficient to attach the sensor to at least one of the sides of the vehicle. It is preferable to attach the sensor to the rear surface of the vehicle body. More preferably, one or more imaging means 72 are provided on each of the front, rear, and both sides of the vehicle body. As the imaging means 72, for example, a camera may be used.

[0085] It is also preferable that the imaging means 72 has a function of imaging a wide range. For example, The imaging range of one imaging means 72 is 80 degrees or more and 180 degrees or less, preferably 90 degrees or more and 18 It is preferable that the angle is 0 degrees or less, and more preferably 120 degrees or more and 180 degrees or less. The imaging means 72 may have one lens with a wide viewing angle, or may have two or more lenses. The configuration may be such that:

[0086] The detection means 73 has a function of detecting the state of the transmission 69 of the vehicle 60. The detection means 73 has a function of outputting the detection information to the control unit 71. Physically, the state of the transmission 69 is forward (the forward gear is connected). , reverse (reverse gear engaged), neutral ( Gear not engaged), stopped (gear not engaged and tires It is possible to detect whether the device is in a locked state or not.

[0087] The storage device 74 stores a program that defines the operation of the control unit 71, setting information, and other information. Here, the setting information can be input to the control unit 71 by the user through the input means 75, for example. The storage device 74 stores information by the control unit 71. It is possible to write and read data.

[0088] The storage device 74 may be, for example, a hard disk drive. ve: HDD) and Solid State Drive (Solid State Drive: S Recording media drives such as SD, flash memory, MRAM (Magnetore sistive Random Access Memory), PRAM (Phase change RAM), ReRAM (Resistance RAM), FeRAM A storage device that uses non-volatile memory elements such as Ferroelectric RAM. or DRAM (Dynamic RAM) or SRAM (Static RAM) Any memory device using any volatile memory element may be used.

[0089] The input means 75 allows a user to input setting information that specifies the operation of the control unit 71 in advance. The input means 75 is, for example, a switch or a touch panel. touchpad, mouse, keyboard, joystick, trackball, data grid A direct input means such as a lobe can be used. When indirect (non-contact) input means such as a touch input means, a voice input means, or a gesture input means is used, This allows the driver to input information without risk even while driving. In the case where the panel 51 has a function as a touch panel, the display panel 51 is used as the input means 7. It can also be used as 5.

[0090] The control unit 71 has a function of outputting an image to the display panel 51 of the display device 50. The control unit 71 has a function of outputting a signal for controlling the driving of the driving means 52 of the display device 50. The control unit 71 also performs analysis, conversion, correction, etc. of image information input from the imaging unit 72. Also, based on the image information input from the imaging means 72, a new image may be generated. The signal may have a function of generating

[0091] The control unit 71 is, for example, a CPU (Central Processing Unit). The system 70 includes a processor and an input device that connects to components such as a storage device 74. The input interface and the output interface may be included. The processor and each interface are electrically connected by a system bus. The processor processes the signals input from each component connected via the system bus. A signal is generated to be output to each component, and each component connected to the system bus is It is possible to comprehensively control the components.

[0092] In addition to the CPU, the processor also includes a DSP (Digital Signal Processor). cessor) and GPU (Graphics Processing Unit), etc. The control unit 71 can be configured to perform various operations using a processor. It performs various data processing and program control by interpreting and executing commands from various programs. The programs that can be executed by the processor are stored in the memory area of ​​the processor. The information may be stored in the memory device 74 or may be stored in the memory device 74.

[0093] The control unit 71 and the storage device 74 are configured to be incorporated, for example, inside the dashboard of the vehicle body. This is preferable because it does not spoil the beauty of the interior of the car. The application system may have the functions of the control unit 71 and the storage device 74. That is, a navigation system may have some of the functions of the system 70. The input means (switches, touch panels, etc.) of the navigation system are connected to the system 70. The detection means 73 may be provided in the vehicle 60 itself. may be diverted.

[0094] The above is a description of an example of the system configuration.

[0095] [Display device type] Next, the form of the display device in the driving assistance system according to one embodiment of the present invention will be described with reference to FIG. Each diagram in FIG. 8 shows the shape of the display panel 51 of the display device 50 and the driver's field of vision. FIG. 8(A) is a schematic diagram illustrating the relationship between the display panel 51 and the display panel 52. 8(B1) and 8(B2) correspond to the case where the display panel 51 is in the first form. FIG. 8(C) corresponds to a case where the display panel 51 is in the third form.

[0096] [Second Form] FIG. 8(A) shows a configuration in which the display panel 51 of the display device 50 is stored (second configuration). FIG. 8A also shows a plane 82 passing through a viewpoint 81 of a driver 80 and a plane 83 passing through the viewpoint 81 of the driver 80. indicates the range in which the front of the vehicle body can be seen through the windshield 61 (forward visibility 83). .

[0097] Here, the viewpoint 81 of the driver 80 changes depending on the physique and seating position of the driver 80. For example, viewpoint 81 is "Japanese Industrial Standard JIS D 0021 Automobile The reference eye point defined in the "Driver Eye Range" can be used.

[0098] The plane 82 may be a horizontal plane passing through the viewpoint 81. Or, the plane 82 may be a plane passing through the viewpoint 81. The plane passing through the ground contact points of the three tires is parallel to the plane passing through the ground contact points of the three tires. When we say that it is higher than the height of 81, it means that it is located above the surface 82. When we say height 1 or less, it means that it is aligned with surface 82 or located below surface 82. Point.

[0099] In the present specification, the forward field of view 83 is defined as a center plane of the vehicle body (a plane that passes through the left and right center line of the vehicle body and 82) and on a plane passing through the viewpoint 81, The area between the line connecting the top of the window 61 and the line connecting the viewpoint 81 and the bottom of the windshield is The range can be set as follows.

[0100] In FIG. 8A, the display panel 51 of the display device 50 is stored, so the forward field of view 83 is obscured. Therefore, the driver 80 does not set the display device 50. The vehicle can be driven normally as if it were not in use.

[0101] [First form] FIG. 8(B1) shows a case where the display panel 51 of the display device 50 intersects with the surface 82. That is, the lower end of the display panel 51 is located at a height equal to or lower than the height of the driver's 80 viewpoint 81 . In this embodiment, the lower end of the display panel 51 is located below the forward field of view 83. By configuring the display panel 51 in this manner, the driver 80 can see the image displayed on the display panel 51. Any information can be seen without changing the line of sight from the state shown in FIG.

[0102] The state shown in FIG. 8(B1) can be suitably used, for example, when reversing the vehicle. At this time, it is preferable that the display panel 51 displays an image of the rear of the vehicle body. The driver 80 can drive while watching the image of the rear of the vehicle displayed on the display panel 51. The display panel 51 is positioned so as to overlap most of the forward field of view 83, so that the field of view of the driver 80 is The rear image of the vehicle can be displayed on most of the screen. A display device having a small display (e.g., 10 inches or less diagonal) built into the The driver 80 feels more immersed and more realistic than when the display panel 51 is applied. By displaying a reversed image of the image captured behind the vehicle on the screen, the driver 80 feels as if he is moving forward. You can drive your vehicle in reverse as if you were actually driving a car.

[0103] Also, as shown in FIG. 8(B2), the lower end of the display panel 51 is below the surface 82. and may be positioned inside the forward field of view 83.

[0104] [Third Form] FIG. 8C shows a case where the lower end of the display panel 51 of the display device 50 is above the surface 82, and 8. In other words, the display panel 51 is located below the display panel 51. The end of the display panel 51 is positioned higher than the height of the driver's eye point 81. In this state, the driver 80 can see the area ahead of the vehicle. In addition, since the display panel 51 is located at the top of the driver's field of vision, 0 allows the user to see the images and information displayed on the display panel 51 without shifting their line of sight significantly. At this time, the display panel 51 displays an image of the surroundings of the vehicle taken by the imaging means 72. In addition to the image, map information, traffic information, information showing the direction of travel, vehicle position information, and route to the destination are also displayed. It is preferable to display information such as route, distance, estimated time of arrival, time, speed, direction, etc. It is.

[0105] The above is a description of the configuration of the display device.

[0106] [Example] Next, an example of an operation that can be applied to the driving assistance system according to one embodiment of the present invention will be described with reference to FIG. 9 shows a flowchart relating to the operation of the driving assistance system.

[0107] The operation starts at S10. At this time, the display panel 51 is in the second or third mode. When the display panel 51 is in the third mode, the display panel 51 displays an image In addition, in S10, the user may input the following information to the input unit 75 in advance: Therefore, setting information that specifies the operation of the control unit 71 may be input in advance.

[0108] In S11, the control unit 71 acquires detection information from the detection means 73. If the detected information is other than that of the vehicle being reversed, the process proceeds to S12. repeat.

[0109] In S12, the control unit 71 reads the setting information stored in the storage device 74. The information includes information on whether to lower the display panel 51 when the detection information indicates reverse driving. There are.

[0110] In S13, the control unit 71 makes a decision based on the setting information. If the information includes an instruction to lower the display panel 51, the process proceeds to S14. If the information includes that the display panel 51 is not to be lowered, the process proceeds to S20 and the operation is terminated. Complete.

[0111] In S14, the control unit 71 controls the driving means 52 to change the display panel 51 into the first form. The driving means 52 transmits a signal to the display panel 51 to operate the display panel 51 in accordance with the signal. The form of the second or third form is transformed into the first form.

[0112] Next, in S15, the control unit 71 transmits a signal to the imaging means 72 to start imaging. The imaging means 72 starts imaging and outputs the captured image information to the control unit 71.

[0113] In S16, the control unit 71 controls the image to be displayed on the display panel 51 based on the acquired image information. The control unit 71 generates and transmits the generated image to the display panel 51. is displayed.

[0114] Here, the driver 80 reverses the vehicle while watching the image displayed on the display panel 51. You can drive in a safe manner.

[0115] Next, in S17, the control unit 71 acquires detection information from the detection means 73 again. If the detection information is other than reverse, the process proceeds to S18. If so, the process returns to S16 and the display is maintained.

[0116] In S18, the control unit 71 stops the display on the display panel 51. Among the images displayed on the panel 51, at least the image captured by the imaging means 72 is In step S18, the control unit 71 stops the image capturing unit 72 from capturing images. The imaging means 72 stops imaging and outputting the video signal. The display may be stopped simultaneously, or either one may be stopped first.

[0117] Next, in S19, the control unit 71 controls the driving means 52 to drive the display panel 51 in the second mode. The driving means 52 transmits a signal to the display panel 50 to cause the display panel 50 to deform. The shape of the panel 51 is changed from a first shape to a second shape.

[0118] In addition, in S19, the display panel 51 may be deformed to the form it had in S10. For example, if the display panel 51 is in the third form at the step S10, the display panel 5 The display panel 51 to be transformed in S19 may be transformed from the first form to the third form. The form may be determined based on the setting information read in S12. If the setting information specifies that the display panel 51 should be in the third form, the display panel 51 is switched to the third form in step S19. It may be modified to the form of 3.

[0119] In S20, the operation ends. In S20, when the display panel 51 is in the second form, On the other hand, when the display panel 51 is in the third In the case of the display panel 51, a video or image is displayed in an area visible to the driver. It may be possible.

[0120] In this example, the display panel 51 is in the first mode when the vehicle is reversed. However, it is possible to perform a variety of other operations.

[0121] For example, when the detection information indicates forward movement, the control unit 71 sets the display panel 51 to the third mode. A signal to change the position of the driving means 52 may be sent to the driving means 52. At this time, the control unit 71 The imaging means 72 starts imaging, and the images of the rear, front, and rear of the vehicle are captured by the imaging means 72. An image generated based on at least one of the side image information is displayed on the display panel 51. This is also fine.

[0122] The above is a description of an example of the operation of the driving assistance system.

[0123] [Display panel display] Videos or images that can be displayed on the display panel 51 will be described below.

[0124] In FIG. 10(A), a vehicle 60 is being driven backwards to park in a parking space 35. The vehicle 60 is provided at its rear with an imaging means 72 for imaging the area behind the vehicle 60. FIG. 10(A) shows the range of the image 31 captured by the imaging means 72. The parking space 35 is shown with white lines and wheel stops defining the parking space 35. It is located inside the landmark 36. Note that the parking space 35 is not actually indicated, It is indicated by a dashed line.

[0125] FIG. 10(B1) shows an example of an image 31 captured by the imaging means 72. 1 is an image of the rear of a vehicle 60, and a target 36 is shown in image 31.

[0126] FIG. 10(B2) shows an example of an image 32 displayed on the display panel 51. Image 32 is an image obtained by flipping the image 31 captured by the imaging means 72 from left to right. By displaying a left-right inverted image on the panel 51, the driver 80 can intuitively drive the vehicle. In other words, it is possible to make the left and right direction of the image 32 coincide with the direction of steering wheel operation. In particular, the display panel 51 is in the first form, and most of the field of view of the driver 80 is visible. When the vehicle is positioned in the vicinity of the driver, the sense of immersion and realism increases, making the driver feel as if they are moving forward. The vehicle 60 can be reversed as if it were in a reverse position.

[0127] FIG. 10B2 shows an example in which a guide 37 indicating the traveling direction of the vehicle 60 is displayed. At this time, for example, the control unit 71 may The information on the determined traveling direction of the vehicle 60 is displayed on the display panel 5 as image information of the guide 37, etc. It can be displayed as 1.

[0128] In addition, the control unit 71 analyzes the image 31 output from the imaging means 72 to The vehicle space 35 and the direction in which the vehicle 60 should move are visualized as images and displayed on the video 32. It is preferable to display them in an overlapping manner. In FIG. 10(B2), the area of ​​the parking space 35 is visible. 13 shows an example in which the image is displayed as a result of being converted into a binary system (hatched in the figure).

[0129] Also, in FIG. 11(A), the direction in which the vehicle 60 should move is indicated by an image 38a resembling a steering wheel. The driver 80 is driving the steering wheel shown in the image 38a. By operating the steering wheel 64 at the same angle as the angle of the vehicle 60, the vehicle 60 can be securely parked in the parking space. You can progress towards 35.

[0130] 11(B1) and (B2) show another example of the image 38a. The current state of the steering wheel 64 is displayed in solid lines, and the vehicle 60 is directed in the direction in which it should travel. In this example, the angle of the handle 64 for the purpose is indicated by a dotted line. 1(B1), an arrow or the like is shown indicating the direction in which the handle 64 is operated (rotated). In addition, when the driver 80 turns the steering wheel 64 to an appropriate angle, the steering wheel 64 can be operated more intuitively. When the image is rotated to 38 degrees, as shown in FIG. 11(B2), The driver 80 is informed of the warning by changing the way of expression such as by flashing the light or changing the color of the steering wheel 6. It is preferable to clearly indicate that the angle 4 is appropriate. Also, the driver 80 is notified by voice. The ion exchange resin may have a function of causing the ion exchange resin to be in contact with the surface of the substrate.

[0131] In this way, when the direction in which the vehicle 60 should move is displayed on the display panel 51, for example, The image capturing unit 71 analyzes the video 31 output from the imaging unit 72, generates an image 38a, and 8a may be superimposed on the image 32 and output to the display panel 51. Specifically, the control unit 71 recognizes the target 36 displayed in the image 31 and The relative positional relationship between the target 36 and the vehicle 60 is analyzed from the position, and the distance obtained by the analysis, etc. The direction in which the vehicle 60 should travel can be calculated based on the information. Examples of targets 36 that can be recognized by the 71 include white lines, wheel stops, walls, steps, ruts, and curbs. In addition to fixed objects such as buildings, road signs, and road markings, living things such as people and animals, and automobiles For example, the vehicle 60 and the target 36 are located at the same time. When the vehicle approaches within a certain distance, the steering wheel is automatically turned or the brakes are applied. It may also be composed of.

[0132] In addition, imaging means 72 are provided not only at the rear of the vehicle 60 but also at the front and sides, and The image can also be displayed on the display panel 51.

[0133] FIG. 12A shows an example in which four imaging means are provided on a vehicle 60. The vehicle 60 has: The imaging means 72a is disposed at the rear of the vehicle, the imaging means 72b is disposed at the front of the vehicle, and the imaging means 72 is disposed at the left side of the vehicle. The imaging means 72a is fixed to the vehicle's right side, and the imaging means 72c is fixed to the vehicle's right side. The imaging means 72b captures the rear of the vehicle, the imaging means 72c captures the front of the vehicle, the imaging means 72d captures the left side of the vehicle, The imaging means 72a to 72d can respectively capture images of the right side of the vehicle. The captured images are therefore denoted as images 31a to 31d.

[0134] FIG. 12(B1) shows an example of an image displayed on the display panel 51. Image 32 In the range, image 32b is on the upper side, image 32a is on the lower side, image 32c is on the left side, and image 32d is on the right side. Here, image 32b is an image with the same orientation as image 31b. Image 32a is an image obtained by flipping image 31a horizontally, and image 32c is an image obtained by flipping image 31a horizontally. Image 32d is image 31d rotated 90 degrees clockwise. It is preferable that the image 32 is a reversed image. This allows the driver 80 to intuitively grasp the situation around the vehicle 60. As shown in FIG. 2(B1), an image 38b of a vehicle 60 is displayed in the center of the four images. This is preferable because it allows for an image that is easier to understand intuitively.

[0135] Also, as shown in FIG. 12B2, among the images 32a to 32d, two adjacent images These images may be joined together and displayed on the display panel 51 as a single image 32e. When the two images are input, the control unit 71 performs image processing to correct the shift or distortion occurring at the boundary between the two images. is preferred.

[0136] The images shown in (B1) and (B2) of FIG. 12 are taken when the vehicle 60 is not being reversed. The display panel 51 can display the information even when the vehicle 60 is moving forward or when the vehicle 60 is stopped. In particular, when the vehicle 60 is moving forward, the image 32c on the left side of the vehicle 60 and the image 32b on the right side of the vehicle 60 are displayed. When the image of the image 32d is displayed on the display panel 51, the image of the image 32d in the blind spot of the driver 80 is Since the driver 80 can grasp the situation, safety can be improved.

[0137] In addition, in FIG. 12(B1) and (B2), images of all four sides of the vehicle are displayed on the display panel 51. However, it is possible to display images from one or more imaging means. Alternatively, an imaging means may be provided for imaging the area obliquely rearward. The display panel 51 may simultaneously display both images for navigation purposes, such as the navigation information and the like. stomach.

[0138] The above is a description of the display on the display panel.

[0139] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0140] (Embodiment 3) In this embodiment, an example of a display device according to one embodiment of the present invention will be described with reference to drawings. .

[0141] [Configuration example 1] 13A and 13B show a configuration example of a display device 150 of one embodiment of the present invention.

[0142] The display device 150 includes a display panel 100, a shaft portion 151, a rotation mechanism 152, and a bearing portion 153. 53 and has.

[0143] The display panel 100 is flexible, and as shown in FIG. 151 and the display panel 100 is hung as shown in FIG. It can be transformed into a non-transformed state.

[0144] The thickness of the display panel 100 is, for example, 10 μm or more and 5 mm or less, and preferably 20 μm or more. 4 mm or less, more preferably 50 μm to 3 mm, typically 100 μm to 2 mm The thinner the display panel 100 is, the thinner the display panel 100 is. The size of the display device 150 when rolled up can be made compact, but if it is too thin, it may be affected by the wind. Moreover, the mechanical strength of the display panel 100 may be reduced. In addition, by having a suitable thickness of, for example, 0.5 mm to 5 mm, the display panel This prevents problems such as the display surface rippling even when the device is hung. In order to prevent the display panel 100 from curling while it is suspended, A member that functions as a weight as shown in FIG. 1 is attached to the lower end of the display panel 100. This is also fine.

[0145] The shaft portion 151 has a function of fixing one end of the display panel 100. FPC (Flexible Printed Circuit) electrically connected to the display panel 100 Here, a connector for electrically connecting to the FPC is provided in the shaft portion 151. It is preferable that a connector or wiring is provided on the display panel 10. It is preferable to provide a circuit for supplying a signal or voltage to the shaft portion 151. The ICs include a radio receiver, a radio transmitter, a power supply line, a battery, and an arithmetic and memory device. The configuration may include one or more of a mounted printed circuit board, an external connection port, etc. .

[0146] Here, the smaller the diameter of the shaft portion 151, the smaller the size of the display panel 100 when rolled up. The diameter of the shaft portion 151 can be made small enough to accommodate the bending of the display panel 100. For example, the diameter of the shaft portion 151 is set to 0.1 mm or more and 50 mm or less. Preferably, the thickness is 0.5 mm or more and 30 mm or less, more preferably, 1 mm or more and 20 mm or less. More preferably, the diameter of the shaft portion 151 can be set to 2 mm or more and 10 mm or less. m or more, the shaft portion 151 is prevented from bending due to the weight of the display panel 100. In addition, by making the diameter of the shaft portion 151 50 mm or less, the size of the display device 150 can be reduced. The size can be made sufficiently compact.

[0147] The rotation mechanism 152 has a function of rotating the shaft portion 151. The rotation mechanism 152 is a combination of a motor or other power source and gears. The shaft portion 151 may be rotated by adjusting the position of the shaft.

[0148] The rotation mechanism 152 corresponds to the driving means 52 illustrated in the first and second embodiments, for example. Correct.

[0149] In addition, between the rotating mechanism 152 and the shaft portion 151, an FPC or the like in the shaft portion 151 is used to transmit power and signals. In this case, it is preferable that the wiring is provided to supply the The wire must be long enough so that it will not break due to the twisting that occurs when rotating 1. Wires that are twisted in the opposite direction to the direction of rotation, etc. It is preferable to use wiring that has been designed to protect against leakage.

[0150] Alternatively, signals and power may be transmitted wirelessly between the rotating mechanism 152 and the shaft portion 151, and wiring may be used. For example, the rotation mechanism 152 may be provided with a wireless By providing a transmitter and a wireless receiver in the shaft portion 151, signals are transmitted wirelessly. In addition, power may be supplied between the rotating mechanism 152 and the shaft portion 151 using non-contact power supply. A mechanism for transmitting the signal may be provided. This will reduce the risk of malfunctions such as broken wires. The rotation mechanism 152 can be made highly reliable by eliminating the problem of the above. Alternatively, signals and power may be supplied to shaft portion 151 directly from another device, rather than from the external device.

[0151] The display device 150 adjusts the amount of rotation of the shaft portion 151 by the rotation mechanism 152. , the length of the area where the display panel 100 is suspended, i.e., the area that contributes to the display, is appropriately adjusted. It is possible.

[0152] In addition, in FIG. 13(A) and (B), the display unit 101 of the display panel 100 is arranged on the outside. The display unit 101 may be wound around the shaft 151 as shown in FIG. 13(C). The wire 152 may be wound around the shaft 151 so that the wire 152 faces inward. As a result, the surface of the display unit 101 of the display panel 100 may come into physical contact with other members. can be suppressed.

[0153] The above is a description of configuration example 1.

[0154] [Configuration example 2] In the following, a configuration example of a display device having a different configuration from the above configuration example 1 will be described.

[0155] 14A to 14C are schematic perspective views of a display device 160 according to one embodiment of the present invention. FIG. 4(A) shows the display surface in a flat state, and FIG. 14(C) shows the display surface in a folded state. 14(B) shows a state between those shown in FIG. 14(A) and FIG. 14(C).

[0156] The display device 160 includes a display panel 100, a fixing portion 102, support members 103a and 103b, The display panel 100 includes a display unit 101 and a cord 104. Yes.

[0157] In this example, the display device 16 is used in a suspended state. 0 is shown as an example, but the vertical relationship is not limited to this, and it can also be used horizontally. Here, the display section 101 of the display panel 100 is arranged vertically (perpendicular to the long side of the fixed section 102). ) is shown in the long side direction, but is not limited to this. The horizontal direction of the display unit 101 (the direction parallel to the long side of the fixed unit 102) is the long side direction. It may be present or may be square.

[0158] The display panel 100 is flexible. Therefore, the display surface can be bent from a flat state. It is possible to reversibly transform the display panel 100 into a state having a surface. Do not bend the panel 100 so that the display surface is on the inside (inward bending) or so that the display surface is on the outside. Therefore, the display panel 100 can be folded. The display panel 100 is flexible at the portion supported by the support members 103a and 103b. It is not necessary to have the above.

[0159] The fixed portion 102 and the display panel 100 are fixed so that their relative positions do not shift. For example, the fixing portion 102 and the display panel 100 are fixed with screws, rivets, etc. Alternatively, they may be bonded together with an adhesive or the like. It may be configured so that the above is sandwiched between the two.

[0160] In addition, an FPC or the like that is electrically connected to the display panel 100 is disposed in the fixing portion 102. Here, a connector and wiring for electrically connecting to the FPC are provided in the fixed portion 102. Furthermore, the fixed portion 102 is preferably configured to supply a signal or a voltage to the display panel 100. In addition, the fixed part 102 may include an antenna, a wireless receiver, A printer that contains ICs such as a wireless transmitter, power supply line, battery, computing device, and memory device. The configuration may include one or more of the following: a power board, an external connection port, and the like.

[0161] The support members 103a and 103b are disposed on the opposite side of the display panel 100 from the display unit 101 side. The support members 103a and 103b are provided to support the display panel 100. The support members 103a and 103b are arranged in the short side direction and When the display surface is flat, the distance from the fixed portion 102 is The support member located furthest away is designated as support member 103a, and the other support members are designated as support members 103b. In addition, the display panels of the support members 103a and 103b are The longer side of the surface overlapping with the support member 103a is called the long side, and the shorter side of the surface overlapping with the support member 103a is called the short side. The direction perpendicular to the surface of the support member 103b that overlaps with the display panel 100 is called the thickness direction.

[0162] The support members 103a and 103b and the display panel 100 are bonded together with, for example, an adhesive. Alternatively, these may be fixed by an adhesive member. If the area over which the members 103a and 103b and the display panel 100 are fixed is large, This is preferable because it can prevent problems such as peeling off.

[0163] The support members 103a and 103b are made of a material having at least lower flexibility than the display panel 100. In addition, the support members 103a and 103b may be made of a material having a low resistance or a high rigidity. If a material having a weight density smaller than that of the display panel 100 is used for the support member 1b, This can prevent the display panel 100 from being damaged due to the weight of the components 103a and 103b. The material used for the support members 103a and 103b is not particularly limited, but may be, for example, a metal, an alloy, Various materials such as wood, paper, synthetic resin, glass, rubber, and ceramics can be used. It is preferable to use plastic or an alloy containing titanium for the support member because of its light weight. 103a and 103b are structures with holes in some parts or structures with cavities inside The support members 103a and 103b may be at least In any case, it is sufficient that the portion supporting the display panel 100 has a flat surface, and the other portions are uneven.

[0043]

[0164] The cord 104 is connected to at least the support member 103a. The cord 104 is connected to both ends of the support member 103a. The long side of the support member 103a is not tilted and is aligned substantially perpendicular to the vertical direction. The support member 103a can be supported by the support member 103b.

[0165] The support member 103a and the cord 104 may be fixed by, for example, an adhesive or the like. The support member 103a may be fixed by tying a cord 104 to it. A through hole is provided in the wire 103a, and the cord 104 is passed through the through hole. A member may be connected to the cord 104 to prevent the cord 104 from becoming unplugged.

[0166] In addition, a winding mechanism 105 is provided on the upper portion of the cord 104. By winding up the cord 104, the support member 103a is moved upward (toward the fixed portion 102). Also, by pulling out the cord 104 using the winding mechanism 105, The support member 103a can be moved downward (to the opposite side to the fixed portion 102) by gravity. can.

[0167] The winding mechanism 105 may have various configurations as long as it has the function of winding up the cord 104. For example, the winding mechanism 105 may include a rotating shaft fixed to at least the cord 104. The winding mechanism 105 may be a manually operated winding cord or the like. Alternatively, a motor or the like may be provided to wind up the cord 104 electrically. In this case, a wireless receiver or the like may be provided to allow the cord 104 to be wound up remotely. It may also be configured to be operable by a remote controller.

[0168] The winding mechanism 105 may be, for example, the driving means 52 illustrated in the first and second embodiments. is equivalent to.

[0169] In addition, although the winding mechanism 105 and the fixed part 102 are shown separately here, they may be integrated. It may be configured to fit within one housing.

[0170] The cord 104 is wound up by the winding mechanism 105, resulting in the state shown in FIG. 14B, and then to the state shown in FIG. 14C. Conversely, the cord 104 can be pulled out by the winding mechanism 105. 14(C) to the state shown in FIG. 14(B) and then to the state shown in FIG. 14(A). That is, the display device 160 can be transformed into the display state by the winding mechanism 105. The state of the display panel 100 can be changed between the state shown in FIG. 14(A) and the state shown in FIG. 14(C). can be done.

[0171] When the cord 104 is wound by the winding mechanism 105, the support member 103a moves upward. At this time, the supporting member 103a and the supporting member 103b adjacent to the supporting member 103a As the distance between the display panel 100 and the display panel 100 decreases, the display panel 100 bends. The external force acting on 100 is a force caused by the support members 103a and 103b approaching each other. Since the influence of external forces such as gravity and the like is dominant and no other external forces are applied, the display panel 100 is Depending on the relative positions of the support members, the table will bend to its natural shape. When an excessive external force is applied to the display panel 100, the allowable radius of curvature of the display panel 100 is exceeded. The display panel 100 may be damaged by bending (or curving) beyond the limit. It can be suppressed.

[0172] As shown in FIG. 14B, in response to the movement of the supporting member 103a, the other supporting members The support member 103b naturally folds over the supporting member 103a. is a force (also called a restoring force) that returns the display panel 100 to its original shape when it is bent. A certain distance is maintained. Therefore, the support members are prevented from coming too close to each other. In addition, the weight of the support member 103b is smaller than that of the display panel 100. When the restoring force of the display panel 100 is small, the support members 103b may be moved relative to each other or the support members 10 The mechanism that prevents the distance between 3a and the support member 103b from becoming closer than a certain value is supported by the cord 104. It is preferable to provide it between the members 103b.

[0173] For example, when the support member 103a is pulled up from the state shown in FIG. A portion of the display panel 100 between a and the lowermost supporting member 103b is curved. As the distance by which the support member 103a is pulled up increases, the display panel 100 The curvature increases, and the restoring force of the display panel 100 increases accordingly. The member 103b is not fixed to the cord 104 and can move up and down. The bottommost support member 103b is lifted up by the restoring force of the panel 100. Similarly, the lowest supporting member 103b and the next lowest supporting member 103b In this manner, the part of the display panel 100 between the support portion 104 and the cord 104 is curved. By lifting the member 103a, the state of FIG. 14(A) is changed to the state of FIG. 14(B) via the state of FIG. The display panel 100 can be transformed into the state shown in FIG. When the display panel 100 is suspended, the radius of curvature of the curved portion of the display panel 100 is affected by gravity. This may result in the signal being smaller closer to the bottom.

[0174] As shown in each drawing of FIG. 14, the cord 104 is folded back at the support member 103a. In this state, each support member 103b is sandwiched between two parts of the cord 104. This is preferable. In this way, the support members 103 are arranged so that they move only in the vertical direction. The guide 104 can function as a guide.

[0175] In addition, as shown in each drawing of FIG. 14, when the cord 104 is formed in a belt-like shape, the support member 10 The cord 104 can hold the support member 103b and the support member 103a more stably. For example, 2 mm or more and 100 mm or less, preferably 5 mm or more and 50 mm or less, more preferably The distance can be set to 10 mm or more and 50 mm or less. It is preferable that the width of the cord 104 is greater than the thickness of the material 103b. If the width is set to 5 mm or more, the support member 103a or the support member 103b will rotate. This can prevent problems such as the above.

[0176] The shape of the cord 104 is not limited to this. For example, the cord 104 may be made of a string-like material. Alternatively, the cord may be passed through a through hole provided in the support member 103b. 104 can function as a guide for the support member 103b. One end of the cord 104 is connected to the support member 103a, and the other end is connected to the winding mechanism 10 5, and the cord 104 may not be folded back.

[0177] The winding mechanism 105 winds one of the two ends of the folded cord 104 first. By winding the support member 103a, the angle of the support member 103a can be adjusted. As shown in FIG. 4(A), when the display surface of the display panel 100 is in a flat state, the support member 1 The short side of 03a is aligned vertically, as shown in Figures 14(B) and (C). When folding the display surface of the panel 100, the angle between the short side direction of the support member 103a and the vertical direction is The angle can be adjusted so that the angle is greater than 0 degrees and equal to or less than 90 degrees. By making the angle of a closer to 90 degrees, the display panel 100 can be folded more easily. It can be made into a pact.

[0178] The cord 104 may be, for example, a material having a higher flexibility than the display panel 100. For the cord 104, for example, a fibrous material can be used. The cord 104 can be made of a material having a thickness of 100 mm or less, which is preferable since it is easy to wind the cord. Examples include, but are not limited to, natural fibers, synthetic fibers, paper, synthetic resins, rubber, fibrous metals or alloys. Various materials such as gold can be used. Also, in FIG. 14 etc., a band-shaped cord 104 is used. However, if the cord 104 is configured to be wound up by the winding mechanism 105, The shape is not limited to a belt shape, but may be a string, a thread, a chain, or any other shape.

[0179] [Modifications] In the above-mentioned configuration example 2, the support member 103a, which is the furthest from the fixed part 102, is connected to the cord 104. The display panel 100 is folded by pulling up the support member 103a. Alternatively, the plurality of support members 103b may be simultaneously lifted up. Examples are shown in Figures 15(A) and (B). Figure 15(A) shows the display panel 100 in the middle of being folded. FIG. 15(B) is a perspective schematic diagram of the display panel 100 in a folded state. FIG.

[0180] In addition, in Fig. 15(A) and (B), the code 104 is not shown for clarity. The cord 104, the support member 103a, and each of the support members 103b are the same as those of the cord 1 of the configuration example 1. The connection relationship between the support member 103a and the support member 103 can be used. a and a plurality of cords connecting each of the plurality of support members 103b. stomach.

[0181] Also, as shown in Figs. 16(A) and (B), two adjacent support members are arranged on opposite sides of each other. The display panel 100 may be configured to be folded by adjusting the angle so as to be tilted.

[0182] The above is an explanation of configuration example 2.

[0183] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0184] (Embodiment 4) In this embodiment, a light-emitting panel that can be applied to a display panel of a display device according to one embodiment of the present invention will be described. A configuration example and a manufacturing method example of the panel will be described.

[0185] [Example 1] FIG. 17A shows a plan view of the light-emitting panel. An example of a cross-sectional view between the color filters is shown in FIG. This is a top emission type light emitting panel using a method. For example, a panel is structured to express one color using three sub-pixels of R (red), G (green), and B (blue). You can also choose from R (red), G (green), B (blue), and W (white), or R (red), G (green), and B (blue) A configuration in which one color is expressed by four sub-pixels of Y (yellow), Y (yellow), etc. can be applied. However, colors other than RGBW may be used, for example, yellow, cyan, magenta, etc. It may be configured as such.

[0186] The light-emitting panel shown in FIG. 17A includes a light-emitting section 804, a driving circuit section 806, and an FPC (Flexible Printed Circuit). The light emitting unit 804 and the driving circuit The light emitting elements and transistors included in the circuit section 806 are formed on the substrate 801, the substrate 803, and the sealing layer 804. It is sealed by 823.

[0187] The light-emitting panel shown in FIG. 17(C) includes a substrate 801, an adhesive layer 811, an insulating layer 813, and a plurality of A transistor, a conductive layer 857, an insulating layer 815, an insulating layer 817, a plurality of light-emitting elements, and an insulating layer 8 21, sealing layer 823, overcoat 849, coloring layer 845, light-shielding layer 847, insulating layer 84 3, adhesive layer 841, and substrate 803. Sealing layer 823, overcoat 849, insulating layer The edge layer 843, adhesive layer 841, and substrate 803 are transparent to visible light.

[0188] The light emitting portion 804 is a transistor on the substrate 801 via an adhesive layer 811 and an insulating layer 813. The light-emitting element 830 includes a lower electrode 83 on an insulating layer 817. 1, an EL layer 833 on the lower electrode 831, and an upper electrode 835 on the EL layer 833. The lower electrode 831 is electrically connected to the source electrode or the drain electrode of the transistor 820. The end of the lower electrode 831 is covered with an insulating layer 821. Preferably, the upper electrode 835 is transparent to visible light.

[0189] The light-emitting section 804 includes a colored layer 845 overlapping the light-emitting element 830 and a layer overlapping the insulating layer 821. The colored layer 845 and the light-shielding layer 847 are covered with an overcoat 849. The space between the light emitting element 830 and the overcoat 849 is filled with a sealing layer 823. There are.

[0190] The insulating layer 815 has an effect of suppressing diffusion of impurities into a semiconductor that constitutes a transistor. The insulating layer 817 has a planarizing function to reduce surface irregularities caused by the transistor. It is preferable to select an insulating layer having

[0191] The driving circuit section 806 is formed by forming a transistor on the substrate 801 via an adhesive layer 811 and an insulating layer 813. In FIG. 17C, the driver circuit portion 806 includes a plurality of transistors. One transistor is shown.

[0192] The insulating layer 813 and the substrate 801 are bonded together by an adhesive layer 811. The insulating layer 813 and the substrate 803 are bonded together by the adhesive layer 841. If a film with low water permeability is used for 843, impurities such as water may be easily absorbed into the light emitting element 830 or the transistor 820. This is preferable because it is possible to prevent objects from entering the panel and the reliability of the panel is increased.

[0193] The conductive layer 857 transmits signals (video signals, clock signals, switch signals, etc.) from the outside to the driving circuit section 806. The external input terminal is electrically connected to an external input terminal that transmits a signal (such as a start signal or a reset signal) or a potential. Here, an example is shown in which an FPC808 is provided as an external input terminal. In order to prevent this, the conductive layer 857 is made of the same material and the same wiring as the electrodes and wiring used in the light-emitting section and the driving circuit section. In this embodiment, the conductive layer 857 is formed in the transistor 820. This shows an example in which the electrode is made of the same material and in the same process as the electrode to be used.

[0194] In the light-emitting panel shown in FIG. 17C, the connector 825 is located on the substrate 803. 825 includes the substrate 803, the adhesive layer 841, the insulating layer 843, the sealing layer 823, the insulating layer 817, and The connecting body 814 is connected to the conductive layer 857 through an opening provided in the insulating layer 815. 25 is connected to the FPC 808. The FPC 808 and the conductive layer 857 are connected to each other via the connector 825. When the conductive layer 857 and the substrate 803 overlap, the substrate 803 is opened. By using a substrate having an opening, the conductive layer 857, the connection 825, and the F The PC808 can be electrically connected.

[0195] In the specific example 1, the insulating layer 813, the transistor 820, the light-emitting element 820, and the like are formed on a highly heat-resistant substrate. A substrate 830 is prepared, the prepared substrate is peeled off, and an insulating layer 8 is formed on a substrate 801 using an adhesive layer 811. 13, a transistor 820, and a light-emitting element 830. In addition, in the specific example 1, the insulating layer 843 and the colored layer 845 are formed on a highly heat-resistant substrate. A light-shielding layer 847 is formed, the formed substrate is peeled off, and the light-shielding layer 847 is formed on the substrate 803 using the adhesive layer 841. A light-emitting panel can be produced by transposing the insulating layer 843, the colored layer 845, and the light-shielding layer 847. It shows.

[0196] When using a material with low heat resistance (such as resin) for the substrate, the substrate is exposed to high temperatures during the manufacturing process. Since it is difficult to form a semiconductor substrate, there are limitations on the conditions for forming transistors and insulating layers on the substrate. When using a highly water-permeable material (such as resin) for the substrate, high temperatures are applied to form a low-permeability film. In the manufacturing method of this embodiment, a transistor is preferably formed on a manufacturing substrate having high heat resistance. Since it is possible to manufacture highly reliable transistors and transistors with sufficient water permeability by applying high temperatures, Then, the film with low adhesion can be transferred to the substrate 801 or the substrate 803. In this way, a highly reliable light-emitting panel can be manufactured. A light-weight or thin and highly reliable light-emitting panel can be realized. The details of the manufacturing method will be described later. do.

[0197] [Example 2] FIG. 17B shows a plan view of the light-emitting panel. An example of a cross-sectional view of the space between the light-emitting panels is shown in FIG. This is a top-emission type light-emitting panel that uses a color filter method. Only the points that differ from Example 1 will be described in detail, and the points in common with Example 1 will be omitted.

[0198] The light-emitting panel shown in FIG. 17(D) differs from the light-emitting panel shown in FIG. 17(C) in the following respects: .

[0199] The light-emitting panel shown in FIG. 17(D) has a spacer 827 on the insulating layer 821. By providing the spacer 827, the distance between the substrate 801 and the substrate 803 can be adjusted.

[0200] In addition, in the light-emitting panel shown in FIG. 17(D), the substrate 801 and the substrate 803 are different in size. The connection body 825 is located on the insulating layer 843 and does not overlap the substrate 803. Through openings provided in the edge layer 843, the sealing layer 823, the insulating layer 817, and the insulating layer 815, The conductive layer 857 is connected to the substrate 803. Since there is no need to provide an opening in the substrate 803, There are no restrictions on materials.

[0201] [Example 3] FIG. 18A shows a plan view of the light-emitting panel. An example of a cross-sectional view of the space between the panels is shown in FIG. 18(C). The light-emitting panel shown in the third example uses a color-coded method. This is a top-emission type light-emitting panel that was used. Here, only the differences from the above specific example are described. A detailed description will be given, and explanations of points common to the above specific example will be omitted.

[0202] The light-emitting panel shown in FIGS. 18A and 18C has a frame-shaped sealing layer 824. The substrate 803 is in contact with the insulating layer 823 and a frame-shaped sealing layer 824 .

[0203] The light-emitting panel shown in FIG. 18(C) includes a substrate 801, an adhesive layer 811, an insulating layer 813, and a plurality of A transistor, a conductive layer 857, an insulating layer 815, an insulating layer 817, a plurality of light-emitting elements, and an insulating layer 8 21, a sealing layer 823, a frame-shaped sealing layer 824, and a substrate 803. The substrate 803 is transparent to visible light.

[0204] The frame-shaped sealing layer 824 is preferably a layer having a higher gas barrier property than the sealing layer 823. This prevents moisture and oxygen from entering the light-emitting panel from the outside. This makes it possible to realize a highly reliable light-emitting panel.

[0205] In the third specific example, the light emitted from the light emitting element 830 is taken out of the light emitting panel through the sealing layer 823. Therefore, it is preferable that the sealing layer 823 has a higher light-transmitting property than the frame-shaped sealing layer 824. In addition, it is preferable that the sealing layer 823 has a higher refractive index than the frame-shaped sealing layer 824. In addition, the sealing layer 823 has a smaller volume shrinkage during hardening than the frame-shaped sealing layer 824. is preferred.

[0206] The connector 825 is provided on the substrate 803, the sealing layer 823, the insulating layer 817, and the insulating layer 815. The conductive layer 857 is connected to the conductive layer 857 through the opening.

[0207] In the specific example 3, the insulating layer 813, the transistor 820, the light-emitting element 820, and the like are formed on a highly heat-resistant substrate. A substrate 830 is prepared, the prepared substrate is peeled off, and an insulating layer 8 is formed on a substrate 801 using an adhesive layer 811. 13, a transistor 820, and a light-emitting element 830. Since transistors and other devices can be manufactured on a heat-resistant substrate, Therefore, it is possible to form a highly reliable transistor and a film with sufficiently low water permeability. By transferring them to the substrate 801, a highly reliable light-emitting panel can be manufactured. As a result, in one embodiment of the present invention, a light-emitting panel that is lightweight or thin and has high reliability can be realized. Cut.

[0208] [Example 4] FIG. 18B shows a plan view of the light-emitting panel. An example of a cross-sectional view between the color filters is shown in FIG. This is a bottom emission type light emitting panel using a method different from the above specific example. Only the above points will be described in detail, and explanations of points common to the above specific example will be omitted.

[0209] The light-emitting panel shown in FIG. 18(D) includes a substrate 801, an adhesive layer 811, an insulating layer 813, and a plurality of A transistor, a conductive layer 857, an insulating layer 815, a colored layer 845, an insulating layer 817a, and an insulating layer 8 17b, a conductive layer 816, a plurality of light-emitting elements, an insulating layer 821, a sealing layer 823, and a substrate 803 The substrate 801, the adhesive layer 811, the insulating layer 813, the insulating layer 815, the insulating layer 817a, And the insulating layer 817b transmits visible light.

[0210] In FIG. 18D, the light-emitting section 804 includes a transistor 820 and a transistor 822. The upper electrode 835 is preferably reflective to visible light. The electrode 831 transmits visible light. The position where the colored layer 845 overlapping the light emitting element 830 is provided is particularly For example, the insulating layer 815 may be formed between the insulating layer 817a and the insulating layer 817b, or between the insulating layer 815 and the insulating layer It may be placed between 817a, etc.

[0211] In FIG. 18D, two transistors among the transistors included in the driver circuit portion 806 are This shows the data.

[0212] In this example, the conductive layer 857 is formed using the same material and process as the conductive layer 816. Here is an example.

[0213] In the specific example 4, the insulating layer 813, the transistor 820, the light-emitting element 820, and the like are formed on a highly heat-resistant substrate. The substrate is peeled off, and an insulating layer is formed on the substrate 801 using the adhesive layer 811. A light-emitting panel that can be produced by transposing 813, a transistor 820, a light-emitting element 830, etc. Since transistors and other devices can be manufactured on a heat-resistant substrate, they can be manufactured without being exposed to high temperatures. This makes it possible to form highly reliable transistors and films with sufficiently low water permeability. By transferring these to the substrate 801, a highly reliable light-emitting panel can be manufactured. As a result, in one embodiment of the present invention, a light-weight or thin and highly reliable light-emitting panel can be realized. It can be realized.

[0214] [Example 5] FIG. 18(E) shows an example of a light-emitting panel different from the concrete examples 1 to 4. Only the differences will be described in detail, and explanations of points in common with the above specific example will be omitted.

[0215] The light-emitting panel shown in FIG. 18(E) includes a substrate 801, an adhesive layer 811, an insulating layer 813, a conductive layer 814, conductive layer 857a, conductive layer 857b, light-emitting element 830, insulating layer 821, sealing layer 82 3, and a substrate 803.

[0216] The conductive layer 857a and the conductive layer 857b function as external connection electrodes of the light-emitting panel. , and can be electrically connected to FPC, etc.

[0217] The light emitting element 830 includes a lower electrode 831, an EL layer 833, and an upper electrode 835. The end of the bottom electrode 831 is covered with an insulating layer 821. The type of the light-extracting side is the top-emission type, the dual-emission type, or the top-emission type. The electrodes, the substrate, the insulating layer, etc. are each transparent to visible light. and electrically connect it to.

[0218] The substrate from which the light is extracted has a hemispherical lens and a microlens array as a light extraction structure. For example, the resin-based film may have a film having a concave-convex structure, a light-diffusing film, or the like. The lens or film is placed on a plate, and the refractive index is the same as that of the substrate or the lens or film. By bonding the light-extraction structure using an adhesive having such properties, a light-extraction structure can be formed.

[0219] The conductive layer 814 is not necessarily required, but it is preferable to reduce the voltage drop caused by the resistance of the lower electrode 831. For the same purpose, the upper electrode 835 and the A conductive layer for electrical connection is formed on the insulating layer 821, the EL layer 833, the upper electrode 835, etc. It may be provided.

[0220] The conductive layer 814 may be made of copper, titanium, tantalum, tungsten, molybdenum, chromium, or neodymium. Materials selected from the group consisting of aluminum, scandium, nickel, and aluminum, or materials containing these as main components The conductive layer 814 can be formed as a single layer or a stacked layer using an alloy material or the like. For example, the thickness can be 0.1 μm or more and 3 μm or less, and preferably, 0.1 μm or more and 0.5 μm or less. It is less than .5μm.

[0221] A paste (such as silver paste) is used as the material for the conductive layer electrically connected to the upper electrode 835. When the conductive layer is heated, the metal constituting the conductive layer becomes granular and aggregates. This results in a structure with many gaps, making it difficult for the EL layer 833 to completely cover the conductive layer, and This is preferable because it makes it easier to electrically connect the conductive layer to the conductive layer.

[0222] In Example 5, an insulating layer 813, a light-emitting element 830, and the like are fabricated on a highly heat-resistant fabrication substrate. The substrate is peeled off, and an insulating layer 813 and a light-emitting element 83 are formed on the substrate 801 using an adhesive layer 811. This shows a light-emitting panel that can be manufactured by transposing 0, etc. on a highly heat-resistant manufacturing substrate. A high temperature is applied to form a film with sufficiently low water permeability (such as an insulating layer 813, etc.), and the film is then attached to the substrate 801. By transposing the above, a highly reliable light-emitting panel can be manufactured. In this way, a light-weight or thin and highly reliable light-emitting panel can be realized.

[0223] In this embodiment, a light-emitting element is used as a display element. The embodiment is not limited thereto.

[0224] For example, MEMS (Micro Electro Mechanical Systems) A display device using a display element such as an MEMS element or an electron emission element can be used. Display elements using MEMS include shutter-type MEMS display elements and optical interference-type ME Examples of electron emission elements include the MS display element. Electronic paper may also be used. As electronic paper, a microcapsule type , electrophoresis method, electrowetting method, electronic liquid powder method, etc. are applied. The above-mentioned element can be used.

[0225] [Example of materials] Next, materials that can be used for the light-emitting panel will be described. The explanation of the configuration may be omitted.

[0226] The substrate can be made of materials such as glass, quartz, organic resin, metal, and alloy. The substrate on the side from which light from the optical element is extracted is made of a material that is translucent to the light.

[0227] In particular, it is preferable to use a flexible substrate. For example, a substrate made of organic resin or a flexible material may be used. Any thickness of glass, metal or alloy may be used.

[0228] Since organic resin has a smaller specific gravity than glass, when organic resin is used as a flexible substrate, This is preferable because it allows the light-weight light-emitting panel to be made lighter than when glass is used.

[0229] It is preferable to use a highly tough material for the substrate. This makes it possible to achieve excellent impact resistance and fracture resistance. For example, organic resin substrates and thin metal substrates can be used. By using an alloy substrate, it is lighter and less susceptible to breakage than when using a glass substrate. It is possible to realize a light-emitting panel.

[0230] Metallic and alloy materials have high thermal conductivity and can easily conduct heat across the entire substrate, making it possible to This is preferable because it can suppress local temperature rises in the panel. The thickness of the substrate is preferably 10 μm or more and 200 μm or less, and more preferably 20 μm or more and 50 μm or less. It is more preferable to do so.

[0231] The material constituting the metal substrate or alloy substrate is not particularly limited. For example, aluminum Metals such as aluminum, copper, iron, titanium, nickel, etc., or one or more metals selected from these metals The alloy may be, for example, an aluminum alloy or a stainless steel alloy. For example, a polysilicon film or the like can be preferably used.

[0232] In addition, if a material with high thermal emissivity is used for the substrate, the surface temperature of the light-emitting panel will increase. For example, the substrate can be thermally bonded to a metal substrate, and the damage to the light-emitting panel and the deterioration of its reliability can be suppressed. A stack of layers with high emissivity (for example, metal oxides or ceramic materials can be used) It may also be of this structure.

[0233] As a material having flexibility and light transmission, for example, polyethylene terephthalate (PE T), polyester resins such as polyethylene naphthalate (PEN), polyacrylonitrile resin, polyimide resin, polymethyl methacrylate resin, polycarbonate (PC) resin Resin, polyethersulfone (PES) resin, polyamide resin, cycloolefin resin, Styrene resin, polyamide-imide resin, polyvinyl chloride resin, polytetrafluoroethylene In particular, it is preferable to use a material with a low thermal expansion coefficient. For example, polyamide-imide resin, polyimide resin, PET, etc. can be suitably used. In addition, resin-impregnated fibrous substrates (also called prepregs) and inorganic fillers are used to make organic resins. It is also possible to use substrates that have been mixed with grease to reduce their thermal expansion coefficient.

[0234] As for the flexible substrate, the layer using the above material acts as a hard layer to protect the surface of the device from scratches. Coating layers (e.g., silicon nitride layers, etc.) and layers of materials that can disperse pressure (e.g., aramid layers, etc.) The insulating layer may be laminated with a layer of a polymeric mide resin or the like.

[0235] The flexible substrate may be used by laminating a plurality of layers. In particular, a structure having a glass layer is preferable. This will improve the barrier properties against water and oxygen, making it possible to create a highly reliable light-emitting panel. can.

[0236] For example, a flexible substrate in which a glass layer, an adhesive layer, and an organic resin layer are laminated from the side closer to the light emitting element is The thickness of the glass layer is preferably 20 μm or more and 200 μm or less. The thickness of the glass layer is preferably 25 μm or more and 100 μm or less. A glass layer having such a thickness is highly resistant to water and oxygen. The organic resin layer can be made thicker than 1 mm thick and has high barrier properties against water and flexibility. The thickness of the thin film is set to 0 μm or more and 200 μm or less, and preferably 20 μm or more and 50 μm or less. By placing the mechanical resin layer on the outside of the glass layer, breakage or cracks in the glass layer are suppressed. The mechanical strength can be improved by using such a composite material of glass material and organic resin. By applying this to the substrate, it is possible to create a highly reliable and flexible light-emitting panel. can.

[0237] For the adhesive layer and sealing layer, there are photo-curable adhesives such as UV-curable adhesives, reaction-curable adhesives, and heat-curable adhesives. Various curing adhesives such as adhesives, anaerobic adhesives, etc. can be used. The following resins are available: epoxy resin, acrylic resin, silicone resin, phenolic resin, polyimide resin, Imide resin, PVC (polyvinyl chloride) resin, PVB (polyvinyl butyral) resin Examples of the resin include ethylene vinyl acetate (EVA) resin. In particular, the permeability of epoxy resin and the like is improved. A material with low wettability is preferable. A two-part mixed resin may also be used. etc. may also be used.

[0238] The resin may contain a desiccant. For example, an oxide of an alkaline earth metal (an acid The material used is one that adsorbs moisture by chemical adsorption, such as calcium chloride or barium oxide. Alternatively, materials such as zeolite and silica gel can absorb water by physical adsorption. If a desiccant is included, impurities such as moisture can be prevented from adsorbing to the functional element. This is preferable because it is possible to suppress the intrusion of foreign matter and improve the reliability of the light-emitting panel.

[0239] In addition, by mixing a filler having a high refractive index or a light scattering material into the resin, a light emitting element can be formed. For example, titanium oxide, barium oxide, Zeolite, zirconium, etc. can be used.

[0240] The structure of the transistor in the light-emitting panel is not particularly limited. For example, a staggered transistor The transistor may be a top gate transistor or an inverted staggered transistor. The transistor may have either a top gate type or a bottom gate type structure. The semiconductor material is not particularly limited, and examples thereof include silicon, germanium, silicon carbide, and gallium nitride. Indium, gallium, etc., or In-Ga-Zn-based metal oxides, etc. Alternatively, an oxide semiconductor containing at least one of lithium and zinc may be used.

[0241] The crystallinity of the semiconductor material used in the transistor is not particularly limited. A semiconductor having crystallinity (a microcrystalline semiconductor, a polycrystalline semiconductor, a single crystal semiconductor, or a semiconductor having a partially crystalline region) If a semiconductor having crystallinity is used, the This is preferable because it is possible to suppress deterioration of the resistor characteristics.

[0242] Here, transistors used in pixels, driving circuits, touch sensors, etc., which will be described later, It is preferable to use an oxide semiconductor for any semiconductor device. It is preferable to use an oxide semiconductor with a larger band gap than silicon. By using a semiconductor material with a wide gap and low carrier density, the off state of a transistor This is preferable because it can reduce the current in the

[0243] For example, the oxide semiconductor may contain at least indium (In) or It is preferable that the material contains zinc (Zn). More preferably, the material contains In-M-Zn oxide (wherein M is A). (metals such as l, Ti, Ga, Ge, Y, Zr, Sn, La, Ce or Hf) Contains oxides.

[0244] In particular, the semiconductor layer has a plurality of crystal parts, and the crystal parts have a c-axis aligned with a surface on which the semiconductor layer is formed. Or, the crystals are oriented perpendicular to the upper surface of the semiconductor layer, and grain boundaries can be confirmed between adjacent crystal parts. It is preferable to use an oxide semiconductor film having no insulating properties.

[0245] Such an oxide semiconductor does not have crystal grain boundaries, so that when the display panel is curved, The occurrence of cracks in the oxide semiconductor film due to stress is suppressed. Such oxide semiconductors are suitable for use in display panels that are flexible and can be curved when used. There can be.

[0246] By using such materials for the semiconductor layer, the fluctuation of electrical characteristics is suppressed, and reliability is improved. This allows for high-performance transistors.

[0247] In addition, transistors using oxide semiconductors with a larger band gap than silicon are also being developed. The low off-state current of the transistor allows the charge stored in the capacitor connected in series with the transistor to be released. By applying such a transistor to a pixel, This makes it possible to stop the drive circuit while maintaining the gradation of the image displayed in each display area. As a result, it is possible to realize electronic devices with extremely reduced power consumption.

[0248] In order to stabilize the characteristics of the transistor, it is preferable to provide an undercoat film. , silicon oxide film, silicon nitride film, silicon oxynitride film, silicon nitride oxide film, etc. The base film can be formed by a single layer or a multilayer structure using an organic insulating film. , CVD (Chemical Vapor Deposition) method (Plasma CVD method, thermal CVD method, MOCVD (Metal Organic CVD) method, etc.), ALD (Atomic Layer Deposition), coating, printing, etc. In addition, the undercoat film does not have to be provided if it is not necessary. The layer 813 can also serve as an underlayer for the transistor.

[0249] The light-emitting element may be a self-emitting element that is illuminated by a current or a voltage. The category includes devices whose light intensity can be controlled. For example, light-emitting diodes (LEDs), organic An EL element, an inorganic EL element, etc. can be used.

[0250] The light-emitting elements are top emission type, bottom emission type, and dual emission type. The electrode on the light extraction side is made of a conductive film that transmits visible light. In addition, it is preferable to use a conductive film that reflects visible light for the electrode on the side from which light is not extracted. stomach.

[0251] The conductive film that transmits visible light is, for example, indium oxide or indium tin oxide (ITO). Indium Tin Oxide, Indium Zinc Oxide, Zinc Oxide, Gallium-doped It can be formed using zinc oxide with added metals. It can also be formed using gold, silver, platinum, magnesium , nickel, tungsten, chromium, molybdenum, iron, cobalt, copper, palladium, if Metallic materials such as titanium, alloys containing these metallic materials, or nitrides of these metallic materials (e.g. For example, titanium nitride can be used by forming it thin enough to have light transmission properties. A laminated film of the above materials can also be used as the conductive layer. For example, a layer of silver and magnesium It is preferable to use a laminated film of an alloy of tungsten and ITO, since the electrical conductivity can be increased. Graphene or the like may also be used.

[0252] The conductive film that reflects visible light is made of, for example, aluminum, gold, platinum, silver, nickel, tungsten, etc. Metallic materials such as stainless steel, chromium, molybdenum, iron, cobalt, copper, or palladium, or In addition, the above-mentioned metal materials and alloys may be used. Tungsten, neodymium, germanium, etc. may be added. Aluminum alloys such as tungsten alloys, aluminum-nickel alloys, and aluminum-neodymium alloys Alloys containing palladium (aluminum alloys), silver and copper alloys, silver, palladium and copper alloys, It can be formed using an alloy containing silver, such as an alloy of silver and magnesium. The alloy is preferable because of its high heat resistance. By laminating the metal oxide film, the oxidation of the aluminum alloy film can be suppressed. Examples of materials for the metal film and metal oxide film include titanium and titanium oxide. A conductive film that transmits visible light and a film made of a metal material may be laminated. For example, silver and ITO A laminated film of an alloy of silver and magnesium and ITO, or the like can be used.

[0253] The electrodes may be formed by vapor deposition or sputtering. The shape is created using a discharge method such as the ink jet method, a printing method such as the screen printing method, or a plating method. It can be achieved.

[0254] A voltage higher than the threshold voltage of the light-emitting element is applied between the lower electrode 831 and the upper electrode 835. When this occurs, holes are injected into the EL layer 833 from the anode side, and electrons are injected from the cathode side. The electrons and holes are recombined in the EL layer 833, and the light-emitting material contained in the EL layer 833 emits light. It shines.

[0255] The EL layer 833 has at least a light-emitting layer. The EL layer 833 has the following layers other than the light-emitting layer: Materials with high hole injection properties, materials with high hole transport properties, hole blocking materials, materials with high electron transport properties A material with high electron injection properties or a bipolar material (high electron transport and hole transport properties) The layer may further include a layer containing a material such as a metal.

[0256] The EL layer 833 can be made of either a low molecular weight compound or a high molecular weight compound. The layers constituting the EL layer 833 may each be formed by deposition (vacuum deposition). It can be formed by methods such as the transfer method, printing method, inkjet method, coating method, etc. Cut.

[0257] When a white-emitting light-emitting element is used as the light-emitting element 830, two types of It is preferable that the light emitting device includes two or more luminescent materials. White light can be obtained by selecting luminescent materials so that the light is complementary in color. For example, they emit light of R (red), G (green), B (blue), Y (yellow), O (orange), etc. or luminescence that contains two or more of the R, G, and B spectral components It is preferable that the light emitting element 830 contains two or more of the above substances. The light has two or more peaks within the visible light wavelength range (e.g., 350 nm to 750 nm). It is preferable to use a light-emitting element having a peak in the yellow wavelength region. The emission spectrum of this material has spectral components in the green and red wavelength regions. is preferred.

[0258] More preferably, the EL layer 833 is a light-emitting layer including a light-emitting material that emits light of one color and a light-emitting layer including a light-emitting material that emits light of another color. It is preferable that the light-emitting layer is laminated with a light-emitting layer containing a light-emitting material that emits light of E The plurality of light-emitting layers in the L layer 833 may be laminated in contact with each other or may be laminated with a separation layer therebetween. For example, a separation layer may be provided between the fluorescent light-emitting layer and the phosphorescent light-emitting layer. It may also be composed of.

[0259] The separation layer is configured to convert the excited state of a phosphorescent material generated in the phosphorescent-emitting layer into the fluorescent material in the fluorescent-emitting layer. Preventing energy transfer (especially triplet energy transfer) to optical materials through the Dexter mechanism The separation layer only needs to be a few nm thick. Specifically, it is 0. 1nm to 20nm, or 1nm to 10nm, or 1nm to 5nm The separation layer may be a single material (preferably a bipolar material) or a plurality of materials. (preferably a hole transporting material and an electron transporting material).

[0260] The separation layer may be formed using a material contained in the light-emitting layer that is in contact with the separation layer. This makes it easier to fabricate the light-emitting device and reduces the driving voltage. When the separation layer is made of a host material, an assist material, and a phosphorescent material (guest material), The separation layer may be formed of a host material and an assist material. The phosphorescent layer has a region that does not contain the material, and the phosphorescent layer has a region that contains the phosphorescent material. It is possible to deposit the separation layer and the phosphorescent layer with or without the phosphorescent material. This configuration makes it possible to form the separation layer and the phosphorescent layer in the same chamber. This makes it possible to reduce manufacturing costs.

[0261] The light emitting element 830 may be a single element having one EL layer, or may be a multi-element element having multiple EL layers. The device may be a tandem device in which an EL layer is laminated via a charge generating layer.

[0262] It is preferable that the light emitting element is provided between a pair of insulating films having low water permeability. This makes it possible to prevent impurities such as water from entering the light emitting element, thereby preventing a decrease in the reliability of the light emitting device. Can be controlled.

[0263] Insulating films with low water permeability include silicon nitride films and silicon oxynitride films, which are made of nitrogen and silicon. and films containing nitrogen and aluminum, such as an aluminum nitride film. A silicon oxide film, a silicon oxynitride film, an aluminum oxide film, or the like may also be used.

[0264] For example, the water vapor permeability of a low-permeability insulating film is 1×10 -5 [g / (m 2 ·day) ] or less, preferably 1 × 10 -6 [g / (m 2 ·day)] or less, preferably 1×1 0 -7 [g / (m 2 ·day)] or less, and more preferably 1×10 -8 [g / (m 2 d ay)] below.

[0265] It is preferable to use an insulating film with low water permeability for the insulating layer 813 and the insulating layer 843.

[0266] The insulating layer 815 may be, for example, a silicon oxide film, a silicon oxynitride film, or an aluminum oxide film. In addition, an inorganic insulating film such as an inorganic film can be used. The insulating layer 817b may be made of, for example, polyimide, acrylic, polyamide, or polyimide. Organic materials such as amide and benzocyclobutene resins can be used. Low dielectric constant materials (low-k materials) can be used. In addition, multiple insulating films can be stacked. Each insulating layer may be formed by

[0267] The insulating layer 821 is formed using an organic insulating material or an inorganic insulating material. For example, polyimide resin, polyamide resin, acrylic resin, siloxane resin, epoxy resin, etc. In particular, photosensitive resin materials can be used to improve insulation. It is preferable that the sidewall of the edge layer 821 is formed to have a curvature and an inclined surface. .

[0268] The method for forming the insulating layer 821 is not particularly limited, but may be a photolithography method, a sputtering method, or the like. , deposition method, droplet ejection method (inkjet method, etc.), printing method (screen printing, offset printing It is advisable to use a printing method, etc.

[0269] The spacer 827 may be formed using an inorganic insulating material, an organic insulating material, a metal material, or the like. For example, inorganic insulating materials and organic insulating materials can be used for the insulating layer. Examples of metal materials that can be used include titanium and aluminum. The spacer 827 containing a conductive material and the upper electrode 835 are electrically connected to each other. This makes it possible to suppress a potential drop caused by the resistance of the upper electrode 835. The shape of the 27 may be either a forward taper shape or a reverse taper shape.

[0270] For light-emitting panels that function as electrodes or wiring of transistors or auxiliary electrodes of light-emitting elements The conductive layer used may be, for example, molybdenum, titanium, chromium, tantalum, tungsten, or aluminum. Metal materials such as aluminum, copper, neodymium, scandium, etc., or alloy materials containing these elements The conductive layer can be formed as a single layer or a laminated layer using a conductive metal oxide. The conductive metal oxide may be indium oxide (In2O3, etc.). ), tin oxide (SnO2, etc.), zinc oxide (ZnO), ITO, indium zinc oxide (I n2O3-ZnO, etc.) or these metal oxide materials containing silicon oxide It is possible.

[0271] The colored layer is a colored layer that transmits light of a specific wavelength band. For example, A red (R) color filter transmits light in the green wavelength range, and a green (G) color filter transmits light in the green wavelength range. A blue (B) color filter that transmits light in the blue wavelength band is used. Each color layer can be formed by using various materials and by printing, inkjet printing, photolithography, etc. They are formed at desired positions by an etching method using a graphic technique or the like.

[0272] The light-shielding layer is provided between adjacent colored layers. The light-shielding layer blocks light from the adjacent light-emitting elements. The colored layer is provided with an end portion that is light-shielding to suppress color mixing between adjacent light-emitting elements. By providing the light-shielding layer so as to overlap the light-shielding layer, it is possible to suppress light leakage. Materials that block light emitted from the light-emitting element can be used, including, for example, metal materials, pigments, and dyes. The black matrix may be formed using a resin material that includes the light-shielding layer. If the light emitting portion is provided in an area other than the light emitting portion, unintended light leakage due to guided light can be suppressed. This is preferable.

[0273] In addition, an overcoat may be provided to cover the colored layer and the light-shielding layer. By doing so, it is possible to prevent impurities contained in the colored layer from diffusing into the light emitting element. The overcoat is made of a material that transmits light emitted from the light emitting element, such as silicon nitride. It uses inorganic insulating films such as silicon oxide films, and organic insulating films such as acrylic films and polyimide films. Alternatively, the insulating film may have a laminated structure of an organic insulating film and an inorganic insulating film.

[0274] In addition, when the material for the sealing layer is applied onto the colored layer and the light-shielding layer, the material for the overcoat is It is preferable to use a material that has high wettability with respect to the material of the sealing layer. As the substrate, an oxide conductive film such as an ITO film or a metal film such as an Ag film that is thin enough to have transparency is used. It is preferred to use a membrane.

[0275] The connector is a paste or sheet made of a thermosetting resin mixed with metal particles. For example, a material that exhibits anisotropic conductivity when bonded by heat and pressure can be used. For example, particles with layers of two or more metals, such as nickel particles coated with gold, are used. It is preferable to use a material in which the surface of a granular resin is coated with a metal. I wish.

[0276] [Example of manufacturing method] Next, a method for manufacturing a light-emitting panel will be illustrated with reference to FIGS. 19 and 20. The following description will be given taking the light-emitting panel having the configuration of 1 (FIG. 18C) as an example.

[0277] First, a release layer 203 is formed on a substrate 201, and an insulating layer 813 is formed on the release layer 203. Next, a plurality of transistors, a conductive layer 857, an insulating layer 815, and an insulating film are formed on the insulating layer 813. An edge layer 817, a plurality of light-emitting elements, and an insulating layer 821 are formed. Note that the conductive layer 857 is exposed. In this manner, openings are formed in the insulating layer 821, the insulating layer 817, and the insulating layer 815 (FIG. 19(A)). ).

[0278] In addition, a peeling layer 207 is formed on the production substrate 205, and an insulating layer 843 is formed on the peeling layer 207. Next, a light-shielding layer 847, a coloring layer 845, and an overcoat 84 are formed on the insulating layer 843. 9 is formed (Figure 19(B)).

[0279] The substrates 201 and 205 are made of a glass substrate, a quartz substrate, and a surface treatment substrate, respectively. A fiber substrate, a ceramic substrate, a metal substrate, etc. can be used.

[0280] The glass substrate may be made of, for example, aluminosilicate glass or aluminoborosilicate glass. Glass materials such as quartz glass, barium borosilicate glass, etc. can be used. If the degree of hardness is high, it is advisable to use one with a strain point of 730°C or higher. By adding more BaO, a more practical heat-resistant glass can be obtained. Russ etc. can be used.

[0281] When a glass substrate is used as the substrate, a silicon oxide film, an acid film, etc. are interposed between the substrate and the peeling layer. When an insulating film such as a silicon oxynitride film, a silicon nitride film, or a silicon oxynitride film is formed, the glass This is preferable because it can prevent contamination from the substrate.

[0282] The peeling layers 203 and 207 are made of tungsten, molybdenum, and titanium, respectively. Tantalum, Niobium, Nickel, Cobalt, Zirconium, Zinc, Ruthenium, Rhodium An element selected from the group consisting of ruthenium, palladium, osmium, iridium, and silicon, It is made of an alloy material or a compound material containing the element, and is a single layer or a laminated layer. The crystal structure of the layer containing silicon may be any of amorphous, microcrystalline, and polycrystalline.

[0283] The release layer can be formed by a sputtering method, a plasma CVD method, a coating method, a printing method, etc. The coating method includes a spin coating method, a droplet ejection method, and a dispense method.

[0284] When the peeling layer has a single layer structure, it is preferably a tungsten layer, a molybdenum layer, or a combination of tungsten and molybdenum. It is preferable to form a layer containing a mixture of tungsten and tungsten oxide. A layer containing an oxynitride, a layer containing an oxide or oxynitride of molybdenum, or a layer containing a tungsten oxide or nitride. Alternatively, a layer containing an oxide or oxynitride of a mixture of fluorine and molybdenum may be formed. A mixture of tungsten and molybdenum is, for example, a mixture of tungsten and molybdenum. Correct.

[0285] In addition, a layer including tungsten and a layer including a tungsten oxide may be used as the peeling layer. When forming a structure, a layer containing tungsten is formed, and an insulating layer formed of oxide is formed on the layer. By forming a film, a tungsten oxide-containing film is formed at the interface between the tungsten layer and the insulating film. Alternatively, the surface of the layer containing tungsten may be subjected to a thermal oxidation treatment. Treatment with oxygen plasma, nitrous oxide (N2O) plasma, ozone water, and other highly oxidizing agents A layer containing tungsten oxide may be formed by treating with a solution or the like. Treatment and heating may be carried out using oxygen, nitrogen, or nitrous oxide, either alone or in combination with other gases. The above plasma treatment or heat treatment may be performed under a mixed gas atmosphere. By changing the temperature, it is possible to control the adhesion between the release layer and the insulating film that will be formed later. be.

[0286] Each insulating layer is formed by using a sputtering method, a plasma CVD method, a coating method, a printing method, etc. For example, it is possible to form a thin film at a temperature of 250°C or higher and 400°C or higher by plasma CVD. By forming the membrane at a temperature of 0.4 °C or lower, it is possible to obtain a dense membrane with extremely low water permeability.

[0287] Thereafter, the surface of the production substrate 205 on which the colored layer 845 and the like are provided or the light-emitting element of the production substrate 201 is A material that will become a sealing layer 823 is applied to the surface on which the chip 230 and the like are provided, and the The fabrication substrate 201 and the fabrication substrate 205 are bonded together so that their surfaces face each other (FIG. 19( C).

[0288] Then, the fabrication substrate 201 is peeled off, and the exposed insulating layer 813 and substrate 801 are bonded to the adhesive layer 81 1. The production substrate 205 is peeled off, and the exposed insulating layer 843 and the substrate 20A, the substrate 803 is attached to the conductive layer 802 using an adhesive layer 841. Although the conductive layer 857 does not overlap with the substrate 803, the conductive layer 857 and the substrate 803 may overlap with each other.

[0289] For example, a peeling layer may be formed by a method using a film made of a When a layer including a metal oxide film is formed on the side in contact with the peeling layer, the metal oxide film is crystallized. The layer to be peeled off can be peeled off from the substrate by weakening the layer to be peeled off. When an amorphous silicon film containing hydrogen is formed as a peeling layer between the substrate and the peeled layer, the laser beam The amorphous silicon film is removed by irradiation or etching, so that the layer to be peeled off is separated from the production substrate. The peeling layer can be peeled off from the layer to be peeled off. The metal oxide film is weakened by crystallization, and a part of the peeling layer is dissolved in a solution or NF. 3. After removal by etching using fluoride gas such as BrF3 or ClF3, the material was weakened. It can be peeled off at the metal oxide film. Furthermore, nitrogen, oxygen, hydrogen, etc. can be used as a peeling layer. (e.g., hydrogen-containing amorphous silicon film, hydrogen-containing alloy film, oxygen-containing alloy film, etc.) The peeling layer is irradiated with laser light to release nitrogen, oxygen, and hydrogen contained in the peeling layer as gas. A method of promoting peeling between the peeled layer and the substrate by exposing the peeled layer to the substrate may also be used. The substrate is mechanically removed or fluorinated with a solution or fluoride gas such as NF3, BrF3, or ClF3. In this case, the peeling layer is not required. good.

[0290] In addition, the peeling process can be performed more easily by combining a plurality of the above peeling methods. In other words, laser irradiation, etching of the peeling layer with gas or solution, sharp knife or Mechanical removal is performed using a scalpel or similar tool to make the peeling layer and the layer to be peeled easier to peel off. Peeling can also be achieved by physical force (mechanically, etc.).

[0291] In addition, a liquid is permeated into the interface between the release layer and the layer to be peeled off, and the layer to be peeled off is peeled off from the substrate. Also, the peeling may be performed while pouring liquid such as water on the film.

[0292] As for other peeling methods, when the peeling layer is made of tungsten, it is possible to use ammonia water and The peeling layer may be etched with a mixed solution of hydrogen peroxide and water to perform the peeling.

[0293] In addition, if peeling can be performed at the interface between the preparation substrate and the layer to be peeled off, a peeling layer may not be provided. For example, glass is used as the substrate, and polyimide, polyester, or polyimide is placed in contact with the glass. Forming organic resins such as polyolefin, polyamide, polycarbonate, and acrylic, Insulating films and transistors are formed on the resin. In this case, the organic resin is heated. The film can be peeled off at the interface between the substrate and the organic resin. A metal layer is provided, and the metal layer is heated by passing an electric current through the metal layer, and an organic resin is formed at the interface between the metal layer and the organic resin. Peeling may also be performed.

[0294] Finally, the insulating layer 843 and the sealing layer 823 are opened to expose the conductive layer 857. (FIG. 20B). In the case where the substrate 803 overlaps with the conductive layer 857, The substrate 803 and adhesive layer 841 are also opened to expose 7 (FIG. 20(C)). The method is not particularly limited, and examples of the method include a laser ablation method, an etching method, an ion beam method, and the like. A sputtering method or the like may be used. Also, the film on the conductive layer 857 may be cut with a sharp blade or the like. Alternatively, an incision may be made in the membrane using a cutting tool and a portion of the membrane may be peeled off using physical force.

[0295] In this manner, a light-emitting panel can be manufactured.

[0296] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0297] (Embodiment 5) In this embodiment, a folding type liquid crystal display device that can be used for a display panel of a display device according to one embodiment of the present invention will be described. A configuration example of a bendable touch panel will be described with reference to Figs. 21 to 24. For materials that can be used for the layers, see embodiment 4.

[0298] [Configuration example 1] Fig. 21(A) is a top view of a touch panel. Fig. 21(B) is a diagram showing the touch panel shown by the dashed line in Fig. 21(A). 21(C) is a cross-sectional view taken along the dashed line in FIG. FIG. 1 is a cross-sectional view between EF.

[0299] As shown in FIG. 21A, a touch panel 390 has a display unit 301.

[0300] The display unit 301 includes a plurality of pixels 302 and a plurality of imaging pixels 308. This allows the detection of a finger or the like touching the display unit 301. A touch sensor can be formed using the above-mentioned.

[0301] The pixel 302 includes a number of sub-pixels (e.g., sub-pixel 302R), each of which includes a light-emitting element and a The pixel circuit is capable of supplying power to drive the light emitting element.

[0302] The pixel circuit includes a wiring that can supply a selection signal and a wiring that can supply an image signal. The wiring is electrically connected to the wiring.

[0303] The touch panel 390 also includes a scan line driver that can supply a selection signal to the pixel 302. A circuit 303g(1) and an image signal line driving circuit capable of supplying an image signal to the pixel 302. It has a path 303s(1).

[0304] The imaging pixel 308 includes a photoelectric conversion element and an imaging pixel circuit that drives the photoelectric conversion element.

[0305] The imaging pixel circuit includes wiring that can supply a control signal and a power supply potential. The wiring is electrically connected to the semiconductor device.

[0306] The control signal may be, for example, a signal to select an imaging pixel circuit that reads out a recorded imaging signal. a signal that can initialize the imaging pixel circuit; and a signal that can detect light by the imaging pixel circuit. Examples of such signals include a signal that can determine the time at which the signal is detected.

[0307] The touch panel 390 may provide control signals to the imaging pixels 308. and an image pickup signal line drive circuit 303s(2) that reads out an image pickup signal. .

[0308] As shown in FIG. 21B, the touch panel 390 is disposed on a substrate 510 and faces the substrate 510. The semiconductor device has a substrate 570.

[0309] A flexible material can be suitably used for the substrate 510 and the substrate 570 .

[0310] Materials that suppress the permeation of impurities can be suitably used for the substrates 510 and 570. For example, if the water vapor transmission rate is 10 -5 g / (m 2 ·day) or less, preferably 10 -6 g / (m 2 .day) or less can be suitably used.

[0311] Materials having approximately the same linear expansion coefficient can be suitably used for the substrates 510 and 570. For example, if the linear expansion coefficient is 1×10 -3 / K or less, preferably 5×10 -5 / K or less, better Preferably 1×10 -5 A material having a viscosity of 0.1 to 1.0 μm may be preferably used.

[0312] The substrate 510 is made up of a flexible substrate 510b and an insulating layer 510a for preventing impurities from diffusing into the light emitting element. , and an adhesive layer 510c for bonding the flexible substrate 510b and the insulating layer 510a is laminated. It is a laminate.

[0313] The substrate 570 includes a flexible substrate 570b and an insulating layer 570a for preventing impurities from diffusing into the light-emitting element. and an adhesive layer 570c that bonds the flexible substrate 570b and the insulating layer 570a. do.

[0314] For example, polyester, polyolefin, polyamide (nylon, aramid, etc.), poly Imide, polycarbonate or acrylic, urethane, epoxy or siloxane bonds A material containing a resin having the above structure can be used for the adhesive layer.

[0315] The sealing layer 560 bonds the substrate 570 and the substrate 510 together. In addition, when light is extracted to the sealing layer 560 side, the sealing layer 560 is a sealing layer. A layer that optically bonds two members (here, substrate 570 and substrate 510) sandwiching the stop layer 560. (hereinafter, also referred to as an optical bonding layer) also functions as a pixel circuit and a light-emitting element (e.g., a light-emitting element). 3. The semiconductor device 350R) is located between the substrate 510 and the substrate 570.

[0316] The pixel 302 includes a subpixel 302R, a subpixel 302G, and a subpixel 302B (FIG. 21 In addition, the subpixel 302R includes a light-emitting module 380R, and the subpixel 302G includes a light-emitting The subpixel 302B comprises a light emitting module 380G, and the subpixel 302B comprises a light emitting module 380B.

[0317] For example, the subpixel 302R supplies power to the first light emitting element 350R and the second light emitting element 350R. (FIG. 21B) The light emitting module 380R includes a first light emitting element 350R and an optical element (e.g., a color layer 367R).

[0318] The light emitting element 350R includes a first lower electrode 351R, an upper electrode 352, and a lower electrode 351R. It has an EL layer 353 between upper electrodes 352 (FIG. 21(C)).

[0319] The EL layer 353 includes a first EL layer 353a, a second EL layer 353b, and a first EL layer 353c. There is an intermediate layer 354 between 53a and the second EL layer 353b.

[0320] The light emitting module 380R has a first colored layer 367R on a substrate 570. Any material that transmits light having a certain wavelength may be used, and may exhibit, for example, red, green, or blue light. A material that selectively transmits light can be used. Alternatively, the light emitted by the light-emitting element can be directly transmitted through the material. Alternatively, a transparent region may be provided.

[0321] For example, the light emitting module 380R includes a first light emitting element 350R and a first color layer 367R. The sealing layer 360 is in contact with the substrate 30.

[0322] The first colored layer 367R is located so as to overlap the first light emitting element 350R. A part of the light emitted by the optical element 350R is reflected by the sealing layer 360, which also serves as an optical bonding layer, and the first colored layer 361. The light is then emitted to the outside of the light-emitting module 380R as shown by the arrow in the figure. do.

[0323] The touch panel 390 includes a light-shielding layer 367BM on a substrate 570. The light-shielding layer 367BM is , and is provided so as to surround a colored layer (for example, the first colored layer 367R).

[0324] The touch panel 390 includes an anti-reflection layer 367p at a position overlapping the display unit 301. As the antireflection layer 367p, for example, a circular polarizing plate can be used.

[0325] The touch panel 390 includes an insulating layer 321. The insulating layer 321 includes a transistor 302t. The insulating layer 321 serves to flatten the unevenness caused by the pixel circuits. In addition, the diffusion of impurities into the transistor 302t and the like can be suppressed. A laminate of insulating layers that can be formed can be applied to the insulating layer 321 .

[0326] The touch panel 390 includes a light emitting element (for example, a first light emitting element 350R) disposed on an insulating layer 321. has.

[0327] The touch panel 390 has a partition wall 328 overlapping an end of the first lower electrode 351R and an insulating layer 3. 21. Also, a spacer 329 for controlling the distance between the substrate 510 and the substrate 570 is provided on the substrate 510. It is provided on the wall 328 .

[0328] The image signal line driver circuit 303s(1) includes a transistor 303t and a capacitor 303c. The driver circuit can be formed on the same substrate as the pixel circuit in the same process. As shown in FIG. 3B, the transistor 303t has a second gate 304 on the insulating layer 321. The second gate 304 is electrically connected to the gate of the transistor 303t. Alternatively, they may be provided with different potentials. A second gate 304 may be provided for transistor 308t, transistor 302t, etc.

[0329] The imaging pixel 308 has a photoelectric conversion element 308p and converts light irradiated onto the photoelectric conversion element 308p into The imaging pixel circuit includes a transistor 308t. include.

[0330] For example, a pin-type photodiode can be used as the photoelectric conversion element 308p.

[0331] The touch panel 390 includes wiring 311 through which a signal can be supplied, and a terminal 319. The wiring 311 is provided to supply signals such as image signals and synchronization signals. The FPC 309(1) is electrically connected to the terminal 319. 1) may have a printed wiring board (PWB) attached.

[0332] The transistors formed in the same process are transistor 302t, transistor 303 t, transistor 308t, and the like.

[0333] In addition to the gate, source, and drain of the transistor, each element constituting the touch panel Materials that can be used for the seed wiring and electrodes include aluminum, titanium, chromium, and nickel. Nickel, copper, yttrium, zirconium, molybdenum, silver, tantalum, or tungsten Metals such as tungsten or alloys containing these as the main components are used in a single layer structure or a multilayer structure. For example, a single-layer structure of an aluminum film containing silicon, or a structure in which an aluminum film is laminated on a titanium film, Two-layer structure, a two-layer structure in which an aluminum film is laminated on a tungsten film, a copper-magnesium- Two-layer structure with copper film laminated on aluminum alloy film, two-layer structure with copper film laminated on titanium film A two-layer structure in which a copper film is laminated on a tungsten film, a titanium film or titanium nitride film and its titanium An aluminum film or a copper film is laminated on the titanium nitride film or the titanium film, and a titanium film is further laminated on the aluminum film or the copper film. A three-layer structure in which a titanium nitride film or a molybdenum nitride film is formed, a molybdenum film or a molybdenum nitride film, and An aluminum film or a copper film is laminated on the molybdenum film or the molybdenum nitride film, and There is also a three-layer structure in which a molybdenum film or molybdenum nitride film is formed on top of the molybdenum oxide film. Transparent conductive materials containing indium, tin oxide, or zinc oxide may also be used. The use of copper, which is rich in copper, is preferable because it improves the controllability of the shape by etching.

[0334] [Configuration example 2] 22(A) and (B) are perspective views of the touch panel 505. FIG. 23 is a cross-sectional view taken along dashed line X1-X2 in FIG. 22(A). be.

[0335] The touch panel 505 includes a display unit 501 and a touch sensor 595 (FIG. 22(B)). The touch panel 505 includes a substrate 510, a substrate 570, and a substrate 590. , substrate 510, substrate 570 and substrate 590 are all flexible.

[0336] The display unit 501 includes a substrate 510, a plurality of pixels on the substrate 510, and a display device for supplying signals to the pixels. The plurality of wirings 511 are arranged on the outer periphery of the substrate 510. The terminal 519 is connected to the FPC 509 (1 ) and electrically connect it to

[0337] The substrate 590 includes a touch sensor 595 and a plurality of electrodes electrically connected to the touch sensor 595. The wiring 598 is routed around the periphery of the substrate 590, and a part of the wiring 598 is The terminal is electrically connected to the FPC 509(2). For clarity, in FIG. 22(B), the substrate 590 is shown on the rear surface side (substrate 510 side). The electrodes, wiring, etc. of the touch sensor 595 are indicated by solid lines.

[0338] As the touch sensor 595, for example, a capacitive touch sensor can be used. The capacitance type includes a surface type capacitance type and a projected type capacitance type.

[0339] The projected capacitive type is classified into self-capacitance type, mutual capacitance type, etc., mainly based on the difference in the driving method. The mutual capacitance method is preferable because it enables simultaneous multi-point detection.

[0340] In the following, the case where a projected capacitive touch sensor is applied will be described with reference to FIG. This will be explained using:

[0341] In addition, various sensors capable of detecting the proximity or contact of a detection target such as a finger are used. It can be used.

[0342] The projected capacitive touch sensor 595 has an electrode 591 and an electrode 592. 591 is electrically connected to one of the multiple wirings 598, and the electrode 592 is connected to the multiple wirings 598. The other of the two is electrically connected to the other of the two.

[0343] As shown in FIGS. 22(A) and 22(B), the electrodes 592 are arranged in a single direction. The shape is such that two quadrilaterals are connected at their corners.

[0344] The electrode 591 is quadrilateral and is repeatedly arranged in a direction intersecting the direction in which the electrodes 592 extend. It has been done.

[0345] The wiring 594 electrically connects the two electrodes 591 that sandwich the electrode 592. It is preferable that the area of ​​the intersection between the pole 592 and the wiring 594 be as small as possible. This reduces the area of ​​the region where no electrodes are provided, and reduces unevenness in transmittance. As a result, unevenness in the luminance of the light passing through the touch sensor 595 can be reduced.

[0346] The shapes of the electrodes 591 and 592 are not limited to this, and may take various shapes. For example, multiple electrodes 591 are arranged with as few gaps as possible, and the electrodes 591 are connected to each other via an insulating layer. 92 may be provided at intervals so that there is an area that does not overlap with the electrode 591. At this time, a dummy electrode that is electrically insulated from the two adjacent electrodes 592 is placed between the adjacent electrodes 592. Providing an electrode is preferable because it makes it possible to reduce the area of ​​the region with different transmittance.

[0347] The touch sensor 595 includes a substrate 590, electrodes 591 arranged in a staggered pattern on the substrate 590, and The insulating layer 593 covers the electrodes 591 and 592, and the adjacent electrodes 591 and 592. The wiring 594 electrically connects the

[0348] The adhesive layer 597 is formed on the substrate 590 so that the touch sensor 595 overlaps the display unit 501. It is pasted onto board 570.

[0349] The electrode 591 and the electrode 592 are formed using a light-transmitting conductive material. The conductive materials that can be used are indium oxide, indium tin oxide, and indium zinc oxide. Conductive oxides such as zinc oxide and zinc oxide doped with gallium can be used. A film containing graphene may also be used. The film containing graphene may be formed, for example, in a film shape. The graphene oxide-containing film can be reduced to form the film. The method for removing the resin from the resin can be, for example, a method of applying heat.

[0350] In addition, the electrodes 591 and 592 are each formed in a mesh shape, and the openings of the mesh In this case, the electrodes 591 and 592 may be disposed so as to overlap each other. For this purpose, materials such as metals and alloys having low electrical conductivity can be used.

[0351] In addition, the conductive films such as the electrodes 591 and 592, that is, the wiring constituting the touch panel As a material that can be used for the electrodes, for example, a material with a low resistance value is preferable. Silver, copper, aluminum, carbon nanotubes, graphene, metal halides (halides) Furthermore, very thin particles (e.g., a diameter of several nanometers) may be used. Metal nanowires, such as those made up of a large number of conductors (measuring 1000 Ω or more), may also be used. Alternatively, a metal mesh made of a conductor may be used. Cu nanowires, Al nanowires, Ag meshes, Cu meshes, Al meshes, etc. In the case of Ag nanowires, the light transmittance is 89% or more, and the sheet resistance is 40 It is possible to achieve Ω / □ or more and 100Ω / □ or less. In addition, because of its high transmittance, Metal nanowires, metal meshes, and carbon nanotubes are used for the electrodes used in the devices, such as pixel electrodes and common electrodes. Carbon nanotubes, graphene, etc. may also be used.

[0352] After forming a film of a light-transmitting conductive material on a substrate 590 by a sputtering method, By using various patterning techniques such as lithography, unnecessary parts are removed to form electrodes 59. 1 and electrode 592 can be formed.

[0353] The material used for the insulating layer 593 is, for example, a resin such as acrylic or epoxy. In addition to resins with siloxane bonds, silicon oxide, silicon oxynitride, and aluminum oxide It is also possible to use inorganic insulating materials such as the above.

[0354] An opening reaching the electrode 591 is provided in the insulating layer 593, and a wiring 594 is connected to the adjacent electrode 591 is electrically connected. The transparent conductive material increases the aperture ratio of the touch panel. Therefore, the electrode 591 and the electrode 59 can be suitably used for the wiring 594. A material having a higher electrical conductivity than 2 can be preferably used for the wiring 594 since it can reduce electrical resistance. can.

[0355] One electrode 592 extends in one direction, and multiple electrodes 592 are provided in a stripe pattern. .

[0356] The wiring 594 is provided so as to intersect with the electrodes 592 .

[0357] A pair of electrodes 591 are provided with one electrode 592 sandwiched therebetween, and wiring 594 is connected to the pair of electrodes 591 are electrically connected.

[0358] The multiple electrodes 591 do not necessarily have to be arranged in a direction perpendicular to one electrode 592. However, the angle between the first and second electrodes may be less than 90 degrees.

[0359] One of the wirings 598 is electrically connected to the electrode 591 or the electrode 592. The wiring 598 is made of, for example, aluminum, gold, platinum, silver, etc. , nickel, titanium, tungsten, chromium, molybdenum, iron, cobalt, copper, or para For example, a metal material such as zinc or an alloy material containing such a metal material can be used.

[0360] An insulating layer is provided to cover the insulating layer 593 and the wiring 594 to protect the touch sensor 595. It is possible.

[0361] Furthermore, the connection layer 599 electrically connects the wiring 598 and the FPC 509(2).

[0362] The connection layer 599 may be made of various anisotropic conductive films (ACFs). Conductive Film) and Anisotropic Conductive Paste (ACP) opic conductive paste) can be used.

[0363] The adhesive layer 597 is transparent. For example, a thermosetting resin or an ultraviolet curing resin may be used. Specifically, the resin may have an acrylic, urethane, epoxy, or siloxane bond. Resins such as resins can be used.

[0364] The display unit 501 includes a plurality of pixels arranged in a matrix. The pixel circuit drives the display element.

[0365] In this embodiment, an organic EL element that emits white light is applied to a display element. However, the display element is not limited to this.

[0366] For example, organic EL elements with different emitting colors can be used as sub-pixels so that the color of light emitted by each sub-pixel is different. It may be applied on a pixel-by-pixel basis.

[0367] The substrate 510, the substrate 570, and the sealing layer 560 can have the same configuration as in the first configuration example.

[0368] The pixel includes a sub-pixel 502R, which comprises a light-emitting module 580R.

[0369] The subpixel 502R supplies power to the first light-emitting element 550R and the second light-emitting element 550R. The pixel circuit includes a transistor 502t that can emit light. 580R includes a first light emitting element 550R and an optical element (eg, a color layer 567R).

[0370] The light-emitting element 550R has a lower electrode, an upper electrode, and an EL layer between the lower electrode and the upper electrode. .

[0371] The light emitting module 580R has a first colored layer 567R in the direction in which the light is extracted.

[0372] In addition, when the sealing layer 560 is provided on the side from which light is extracted, the sealing layer 560 is It contacts the light emitting element 550R and the first colored layer 567R.

[0373] The first colored layer 567R is located so as to overlap the first light emitting element 550R. A part of the light emitted by the optical element 550R is transmitted through the first colored layer 567R and is reflected by the arrows in the figure. The light is emitted to the outside of the light emitting module 580R in the direction of the arrow.

[0374] The display unit 501 has a light-shielding layer 567BM in the light-emitting direction. , and is provided so as to surround a colored layer (for example, the first colored layer 567R).

[0375] The display unit 501 includes an anti-reflection layer 567p at a position overlapping the pixel. For example, a circular polarizing plate can be used as p.

[0376] The display unit 501 includes an insulating film 521. The insulating film 521 covers the transistor 502t. The insulating film 521 is used as a layer for flattening unevenness caused by the pixel circuit. In addition, a laminated film including a layer capable of suppressing the diffusion of impurities can be applied to the insulating film 521. This can reduce the reliability of the transistors 502t and the like caused by the diffusion of impurities. The decrease in the amount of

[0377] The display unit 501 has a light-emitting element (for example, a first light-emitting element 550R) on an insulating film 521. do.

[0378] The display unit 501 has a partition wall 528 on an insulating film 521, the partition wall 528 overlapping an end of the first lower electrode. In addition, a spacer for controlling the distance between the substrate 510 and the substrate 570 is provided on the partition wall 528 .

[0379] The scanning line driver circuit 503g(1) includes a transistor 503t and a capacitor 503c. In addition, the driver circuit and the pixel circuit can be formed on the same substrate in the same process.

[0380] The display unit 501 includes a wiring 511 capable of supplying a signal, and a terminal 519 is connected to the wiring 511. 11. In addition, F PC 509 ( 1 ) is electrically connected to terminal 519 .

[0381] In addition, a printed wiring board (PWB) may be attached to the FPC509(1). stomach.

[0382] The display portion 501 has wiring such as scanning lines, signal lines, and power lines. can be used for wiring.

[0383] Note that various transistors can be used for the display portion 501. A configuration in which the data is applied to the display unit 501 is shown in FIGS.

[0384] For example, a semiconductor layer containing an oxide semiconductor, amorphous silicon, or the like is This can be applied to the transistor 502t and the transistor 503t shown.

[0385] For example, a semiconductor containing polycrystalline silicon crystallized by a process such as laser annealing The layer is applied to the transistor 502t and the transistor 503t shown in FIG. It is possible.

[0386] In addition, a configuration in which a top-gate type transistor is applied to the display unit 501 is shown in FIG. Illustrated in (C).

[0387] For example, a single crystal silicon film transferred from a polycrystalline silicon or single crystal silicon substrate, etc. The semiconductor layer including the above is formed into a transistor 502t and a transistor 502t shown in FIG. Can be applied to 03t.

[0388] [Configuration example 3] FIG. 24 is a cross-sectional view of touch panel 505B. The display unit 505B displays the supplied image information on the side where the transistor is provided. The touch sensor is provided on the substrate 510 side of the display unit. This is different from the touch panel 505 of Example 2. The different configuration will be described in detail here. The above description is incorporated herein by reference in relation to the parts in which the above configuration can be used.

[0389] The first colored layer 567R is located so as to overlap the first light emitting element 550R. The light-emitting element 550R shown in A) emits light toward the side where the transistor 502t is provided. As a result, a part of the light emitted by the light emitting element 550R is transmitted through the first colored layer 567R. , and is emitted to the outside of light emitting module 580R in the direction of the arrow shown in the figure.

[0390] The display unit 501 has a light-shielding layer 567BM in the light-emitting direction. , and is provided so as to surround a colored layer (for example, the first colored layer 567R).

[0391] The touch sensor 595 is provided on the substrate 510 side of the display unit 501 (FIG. 24(A)). ).

[0392] The adhesive layer 597 is between the substrate 510 and the substrate 590, and the display unit 501 and the touch sensor 5 Paste 95 together.

[0393] Note that various transistors can be used for the display portion 501. A configuration in which the above-mentioned data is applied to the display unit 501 is shown in FIGS.

[0394] For example, a semiconductor layer including an oxide semiconductor, amorphous silicon, or the like is formed as shown in FIG. This can be applied to the transistor 502t and the transistor 503t shown.

[0395] For example, a semiconductor layer containing polycrystalline silicon or the like is formed into a transistor 5 shown in FIG. The present invention can be applied to transistors 502t and 503t.

[0396] In addition, a configuration in which a top-gate type transistor is applied to the display unit 501 is shown in FIG. Illustrated in (C).

[0397] For example, a semiconductor layer including polycrystalline silicon or a transferred single crystal silicon film is formed as shown in FIG. This can be applied to the transistor 502t and the transistor 503t shown in FIG. do.

[0398] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0399] (Embodiment 6) In this embodiment, a touch panel that can be used in a display panel of a display device according to one embodiment of the present invention will be described. An example of a method for driving the panel will be described with reference to the drawings.

[0400] [Example of sensor detection method] FIG. 25A is a block diagram showing the configuration of a mutual capacitance type touch sensor. In (A), a pulse voltage output circuit 601 and a current detection circuit 602 are shown. In (A), an electrode 621 to which a pulse voltage is applied and an electrode 622 to which a change in current is detected are arranged. Each of these is shown as six wires, X1-X6 and Y1-Y6. A) illustrates a capacitance 603 formed by overlapping an electrode 621 and an electrode 622. The functions of the electrodes 621 and 622 may be interchangeable.

[0401] The pulse voltage output circuit 601 is a circuit for applying a pulse voltage to the wirings X1-X6 in sequence. When a pulse voltage is applied to the wiring of X1-X6, a current that forms a capacitance 603 An electric field is generated between the electrodes 621 and 622. The electric field generated between these electrodes is capacitively shielded. By using a change in the capacitance of 603, the proximity or contact of a detection object is detected. It is possible.

[0402] The current detection circuit 602 detects the current in the wiring Y1-Y6 due to a change in the capacitance of the capacitor 603. The Y1-Y6 wiring detects the proximity or connection of the object to be detected. If there is no contact, the detected current value does not change, but the current value changes depending on the proximity or contact of the object to be detected. When the capacitance decreases, the change in the current value is detected. This can be done using a road or the like.

[0403] Next, FIG. 25B shows the input of the mutual capacitance type touch sensor shown in FIG. The timing chart of the output waveform is shown in FIG. 25(B). In FIG. 25(B), the case where the object is not detected ( Two cases are shown: when the sensor detects a target object (touch) and when the sensor detects a target object (non-touch). For the wiring Y1-Y6, the waveform is shown as a voltage value corresponding to the detected current value. There are.

[0404] A pulse voltage is applied to the wires X1-X6 in sequence, and the The waveform in the Y6 wiring changes. When there is no proximity or contact of the object to be detected, X1-X6 The waveforms of Y1-Y6 change uniformly according to the change in the voltage of the wiring. Or, at the point of contact, the current value decreases, and the corresponding voltage waveform also changes. do.

[0405] In this way, the proximity or contact of the object to be detected is detected by detecting the change in capacitance. It is possible.

[0406] In FIG. 25A, only a capacitor 603 is provided at the intersection of the wiring as a touch sensor. The configuration of a passive matrix touch sensor has been shown, but An active matrix touch sensor may be used. 2 shows an example of one sensor circuit included in a touch sensor.

[0407] The sensor circuit includes a capacitor 603, a transistor 611, a transistor 612, and a transistor The transistor 613 has a gate to which a signal G2 is applied, and a source or A voltage VRES is applied to one of the drains, and the other is connected to one electrode of the capacitor 603 and the transistor. The transistor 611 is electrically connected to the gate of the transistor 611. One is electrically connected to one of the source and drain of the transistor 612, and the other is connected to a voltage V A signal G1 is applied to the gate of the transistor 612, and a signal G2 is applied to the source or drain of the transistor 612. The other electrode of the capacitor 603 is electrically connected to the wiring ML. can be obtained.

[0408] Next, the operation of the sensor circuit will be described. First, the transistor 613 is turned on as the signal G2. When a potential is applied to turn on the transistor 611, the gate of the transistor 611 is connected to the node A potential corresponding to the voltage VRES is applied to node n. By applying a potential that turns off the node 613, the potential of the node n is maintained.

[0409] Next, the capacitance of the capacitor 603 changes when a detection object such as a finger approaches or touches the sensor. Accordingly, the potential of the node n changes from VRES.

[0410] The read operation applies a potential to the signal G1 to turn on the transistor 612. The current flowing through the transistor 611 in response to the potential of the node n, that is, the current flowing through the wiring ML, is By detecting this current, the proximity or contact of the object to be detected can be detected. can.

[0411] The transistors 611, 612, and 613 have channels each having a It is preferable to use a transistor in which an oxide semiconductor is used for a semiconductor layer to be formed. By applying such a transistor to the transistor 613, the potential of the node n This makes it possible to hold the voltage VRES for a long period of time, and the action of resupplying the voltage VRES to the node n is eliminated. This can reduce the frequency of refresh operations.

[0412] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination.

[0413] (Embodiment 7) In this embodiment, a display panel which can be applied to the display device of one embodiment of the present invention and can be easily enlarged will be described. An example of the configuration of a laminated panel, which is one aspect of the present invention, will be described with reference to the drawings.

[0414] One embodiment of the present invention is to increase the size of a display by arranging a plurality of display panels so that they overlap each other. In addition, at least the display surface side of the two overlapping display panels is The display panel located on the upper side has a portion adjacent to the display section that transmits visible light. The pixels of the display panel arranged on the side and the visible light transmitting part of the display panel arranged on the upper side This allows the two display panels to be viewed from the display surface side (plan view). In this way, it becomes possible to display the images displayed on these devices in a seamless manner. .

[0415] For example, one aspect of the present invention is a stack having a first display panel and a second display panel. The first display panel has a first region, the first region including a first pixel and The second display panel has a second region, a third region, and a fourth region. The second region has a third pixel, and the third region has a function of transmitting visible light. The second region of the first display panel has a function of blocking visible light, and the fourth region has a function of blocking visible light. The pixel and the third region of the second display panel have an overlapping area. The aperture ratio of the pixel is larger than the aperture ratio of the first pixel.

[0416] More specifically, for example, the following configuration can be adopted.

[0417] FIG. 27A is a schematic top view of a display panel 400 included in a display device according to one embodiment of the present invention. It is.

[0418] The display panel 400 includes a display area 401 and a transparent transparent layer adjacent to the display area 401. The region 410 has a portion that blocks visible light, and the region 420 has a portion that blocks visible light. Now, let's attach an FPC (Flexible Printed Circuit) to the display panel 400. ) 412 is provided.

[0419] Here, the display panel 400 can display an image in the display area 401 even when used alone. Cut.

[0420] In the region 410, for example, a pair of substrates constituting the display panel 400 and the pair of substrates A sealant for sealing the display element sandwiched between the display elements may be provided. The member provided in the region 410 is made of a material that transmits visible light.

[0421] In the region 420, for example, wiring electrically connected to pixels included in the display region 401 is provided. In addition to these wirings, a driving circuit (scanning line driver) is also used to drive the pixels. In addition, a circuit such as a signal line driving circuit, a protection circuit, etc. may be provided. 20 is a terminal (also called a connection terminal) that is electrically connected to the FPC 412, and This also includes areas where wiring etc. for connecting to each other are provided.

[0422] For a detailed description of an example of the cross-sectional configuration of the display panel, the fourth and fifth embodiments can be cited.

[0423] [Laminated panel configuration example 1] The laminated panel 40 according to one embodiment of the present invention includes a plurality of the above-described display panels 400. In (B) a schematic top view of a stacked panel 40 comprising three display panels is shown.

[0424] In the following, the display panels, the components included in the display panels, and When components related to each display panel are to be described separately, the symbols The alphabet is added after the mark. Unless otherwise specified, some of the marks are overlapped. The display panel arranged at the bottom (opposite the display surface) of the multiple display panels arranged in the display panel. The symbol "a" is added to the constituent elements of the device, and one or more elements are arranged in order above the symbol "a". For display panels and their components, the alphabet is added after the reference numeral. In addition, unless otherwise specified, a configuration including multiple display panels is When providing an explanation, the explanation will be about matters common to each display panel or component. In such cases, the alphabet will be omitted.

[0425] The laminated panel 40 shown in FIG. 27(B) includes a display panel 400a, a display panel 400b, and and a display panel 400c.

[0426] The display panel 400b is disposed so that a part of it overlaps the upper side (display surface side) of the display panel 400a. Specifically, the display area 401a of the display panel 400a and the display panel 400 b of the display panel 400a. 01a and the region 420b that blocks visible light of the display panel 400b are arranged so as not to overlap each other. It has been done.

[0427] In addition, a part of the display panel 400c overlaps the upper side (display surface side) of the display panel 400b. Specifically, the display area 401b of the display panel 400b and the display panel The region 410c of the display panel 400c that transmits visible light overlaps with the region 410b of the display panel 400c that transmits visible light. The area 401b and the area 420c that blocks visible light of the display panel 400c are arranged so as not to overlap each other. are located at.

[0428] Since the region 410b that transmits visible light is overlapped on the display region 401a, the display region 40 The entire display area 1a can be viewed from the display surface side. By overlapping 410c, the entirety of the image can be viewed from the display surface side. A region in which the display region 401a, the display region 401b, and the display region 401c are arranged seamlessly. This makes it possible to use the entire area as the display area 41 of the laminated panel 40.

[0429] [Laminated panel configuration example 2] FIG. 27B shows a configuration in which multiple display panels 400 are stacked in one direction. A plurality of display panels 400 may be arranged in a stacked manner in both the vertical and horizontal directions.

[0430] FIG. 28A shows an example of a display panel 400 having a different shape of the area 410 from that shown in FIG. 27A. The display panel 400 shown in FIG. 28(A) is a display panel that can be moved along two sides of a display area 401. A region 410 is disposed that is transmissive to visible light.

[0431] FIG. 28B shows a stack of the display panels 400 shown in FIG. 28A arranged two vertically and two horizontally. 28(C) shows a schematic perspective view of the panel 40. FIG. 28(C) shows the display surface side of the laminated panel 40. 1 is a schematic perspective view as seen from the opposite side.

[0432] In FIG. 28B and FIG. 28C, along the short side of the display area 401a of the display panel 400a, The area is provided so as to overlap with a part of the area 410b of the display panel 400b. The area along the long side of the display area 401a of the display panel 400a and the area of ​​the display panel 400c A part of the display panel 400d is overlapped with the area 410c. The area along the long side of the display area 401b of the display panel 400b and the area along the long side of the display panel 400c It is provided so as to overlap with an area along the short side of the display area 401c.

[0433] Therefore, as shown in FIG. 28B, the display area 401a, the display area 401b, and the display The area where the area 401c and the display area 401d are arranged seamlessly is the surface of the laminated panel 40. It is possible to make the display area 41.

[0434] Here, a pair of substrates used in the display panel 400 are made of a flexible material. It is preferable that the filter 400 has flexibility. As shown in the display panel 400a in FIG. 1C, the FPC 412a and the like are provided on the display surface side. In this case, a part of the display panel 400a on the side where the FPC 412a is provided is curved, and the FPC 12a is arranged so as to overlap the lower side of the display area 401b of the adjacent display panel 400b. As a result, the FPC 412a can be physically connected to the rear surface of the display panel 400b. The display panels 400a and 400b can be arranged without interfering with each other. When bonding FPC412a and FPC412b together, there is no need to consider the thickness of FPC412a. The upper surface of the region 410b of the display panel 400b and the upper surface of the display region 401a of the display panel 400a As a result, the difference in height between the display panel 400b located above the display area 401a can be reduced. This can prevent the end portion from being seen.

[0435] Furthermore, by making each display panel 400 flexible, the display area of ​​the display panel 400b can be The height of the upper surface of the display area 401b is the height of the upper surface of the display area 401a of the display panel 400a. The display panel 400b can be gently curved to match the height of the display. Therefore, except for the area near where the display panels 400a and 400b overlap, each display area The height of the display area 41 of the laminated panel 40 can be adjusted to match the display quality of the image. You can improve your ranking.

[0436] In the above, the relationship between the display panel 400a and the display panel 400b has been described as an example. The same is true between the two display panels.

[0437] In order to reduce the step between two adjacent display panels 400, For example, the thickness of the display panel 400 is set to 1 mm or less, preferably 3 It is preferable to set the thickness to 00 μm or less, and more preferably 100 μm or less.

[0438] In this example, four display panels 400 are stacked. By increasing the number of panels, it is possible to make extremely large laminated panels. By changing the arrangement of the display panel 400, the outline shape of the display area of ​​the laminated panel can be changed to a circle or an ellipse. The display panel 400 may be formed in various shapes, such as a circle or a polygon. By placing the display panel 100 in the position shown in FIG.

[0439] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination. [Explanation of symbols]

[0440] 31 Video 31a Video 31b Video 31c Video 31d Video 32 Video 32a Video 32b Video 32c Video 32d video 32e Video 35 Parking Spaces 36 Target 37 Guide 38a Image 38b Image 40 Laminated Panel 41 Display area 50 Display device 51 Display Panel 52 Driving means 53 Mechanism 54 Case 60 vehicles 61 Windshield 62 Gear shift lever 63 Sun visor 64 Handle 65 Navigation System 66 Operation section 67 Image output means 68 Ceiling 69 Gearbox 70 Systems 71 Control Unit 72 Imaging means 72a Imaging means 72b Imaging means 72c Imaging means 72d Imaging means 73 Detection Methods 74 Storage device 75 Input Method 80 Driver 81 Viewpoint 82 sides 83 Forward visibility 91 Shutter 100 Display Panel 101 Display section 102 Fixed part 103 Support member 103a Support member 103b Support member 104 Code 105 Mechanism 150 Display device 151 Shaft 152 Rotation mechanism 153 Bearing section 160 Display device 201 Preparation substrate 203 Peeling layer 205 Preparation Substrate 207 Peeling layer 230 Light-emitting element 301 Display section 302 pixels 302B subpixel 302G subpixel 302R subpixel 302t Transistor 303c capacity 303g(1) Scanning line driver circuit 303g(2) Imaging pixel driving circuit 303s(1) Image signal line driver circuit 303s(2) Imaging signal line driver circuit 303t Transistor Gate 304 308 imaging pixels 308p Photoelectric conversion element 308t transistor 309 FPC 311 Wiring 319 Terminal 321 Insulating layer 328 Bulkhead 329 Spacer 350R Light emitting element 351R lower electrode 352 Upper electrode 353 EL layer 353a EL layer 353b EL layer 354 Middle Class 360 Sealing layer 367BM light shielding layer 367p anti-reflection layer 367R colored layer 380B Light Emitting Module 380G Light Emitting Module 380R Light Emitting Module 390 Touch Panel 400 Display Panel 400a Display Panel 400b Display panel 400c Display Panel 400d Display Panel 401 Display area 401a Display area 401b display area 401c display area 401d display area 410 areas 410b area 410c area 410d area 412 FPC 412a FPC 420 areas 420b area 420c area 501 Display section 502R subpixel 502t transistor 503c capacity 503g Scanning line driver circuit 503t Transistor 505 Touch Panel 505B Touch Panel 509 FPC 510 Substrate 510a Insulating layer 510b flexible substrate 510c adhesive layer 511 Wiring 519 Terminal 521 Insulating film 528 Bulkhead 550R Light emitting element 560 Sealing layer 567BM light shielding layer 567p anti-reflection layer 567R colored layer 570 Substrate 570a Insulating layer 570b flexible substrate 570c ​​adhesive layer 580R Light Emitting Module 590 Substrate 591 Electrode 592 Electrode 593 Insulating Layer 594 Wiring 595 Touch Sensor 597 Adhesive layer 598 Wiring 599 Connection Layer 601 Pulse voltage output circuit 602 Current detection circuit 603 capacity 611 Transistor 612 Transistor 613 Transistor 621 Electrode 622 Electrode 801 Substrate 803 Substrate 804 Light emitting part 806 Drive circuit section 808 FPC 811 Adhesive layer 813 Insulating layer 814 Conductive layer 815 Insulating layer 816 Conductive layer 817 Insulating layer 817a Insulating layer 817b Insulating layer 820 Transistor 821 Insulating layer 822 Transistor 823 Sealing layer 824 Sealing layer 825 Connector 827 Spacer 830 Light emitting element 831 Lower electrode 833 EL layer 835 Upper electrode 841 Adhesive layer 843 Insulation Layer 845 Colored layer 847 Light blocking layer 849 Overcoat 857 Conductive layer 857a Conductive layer 857b Conductive layer

Claims

[Claim 1] A driving assistance system having a sun visor, a housing, and a display device, and capable of being installed in a vehicle body, The display device has a display panel, The sun visor is attached to a ceiling of the vehicle body, The housing is attached to the sun visor, the housing has a function of storing the display panel, The sun visor has a function of reversibly changing between a first form and a second form, The first mode is a state in which the headlight is located on a ceiling side of the vehicle body, The second configuration is a state in which the sensor is located in front of a windshield of the vehicle body, In the first form, the housing can be hidden by the sun visor, In the second embodiment, the display panel is suspended from the housing and positioned within a range visible to the driver.

Images